Quarterly report pursuant to Section 13 or 15(d)

Segment Information (Details)

v2.4.1.9
Segment Information (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Dec. 31, 2014
Sales and revenues:      
Sales and revenues $ 1,229,687us-gaap_Revenues $ 168,207us-gaap_Revenues  
Operating expenses:      
Lease operating 8,102us-gaap_OilAndGasProductionExpense 4,869us-gaap_OilAndGasProductionExpense  
Gathering, compression, processing, and transportation 163,662us-gaap_GasGatheringTransportationMarketingAndProcessingCosts 83,510us-gaap_GasGatheringTransportationMarketingAndProcessingCosts  
Depletion, depreciation, and amortization 182,300us-gaap_DepreciationDepletionAndAmortization 91,206us-gaap_DepreciationDepletionAndAmortization  
General and administrative expense 59,049us-gaap_GeneralAndAdministrativeExpense 50,985us-gaap_GeneralAndAdministrativeExpense  
Other operating expenses 116,880us-gaap_OtherCostAndExpenseOperating 41,716us-gaap_OtherCostAndExpenseOperating  
Total 529,993us-gaap_OperatingExpenses 272,286us-gaap_OperatingExpenses  
Operating income (loss) 699,694us-gaap_OperatingIncomeLoss (104,079)us-gaap_OperatingIncomeLoss  
Segment assets 12,481,951us-gaap_Assets 7,134,457us-gaap_Assets 11,573,495us-gaap_Assets
Capital expenditures for segment assets 770,826us-gaap_PaymentsToAcquirePropertyPlantAndEquipment 731,706us-gaap_PaymentsToAcquirePropertyPlantAndEquipment  
Exploration and production      
Sales and revenues:      
Sales and revenues 1,166,089us-gaap_Revenues
/ us-gaap_StatementBusinessSegmentsAxis
= ar_ExplorationAndProductionMember
161,457us-gaap_Revenues
/ us-gaap_StatementBusinessSegmentsAxis
= ar_ExplorationAndProductionMember
 
Gathering and compression      
Sales and revenues:      
Sales and revenues 52,243us-gaap_Revenues
/ us-gaap_StatementBusinessSegmentsAxis
= ar_GatheringAndCompressionMember
11,773us-gaap_Revenues
/ us-gaap_StatementBusinessSegmentsAxis
= ar_GatheringAndCompressionMember
 
Fresh Water Distribution      
Sales and revenues:      
Sales and revenues 34,430us-gaap_Revenues
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_WaterDistributionMember
24,759us-gaap_Revenues
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_WaterDistributionMember
 
Marketing      
Sales and revenues:      
Sales and revenues 57,780us-gaap_Revenues
/ us-gaap_StatementBusinessSegmentsAxis
= ar_MarketingMember
3,226us-gaap_Revenues
/ us-gaap_StatementBusinessSegmentsAxis
= ar_MarketingMember
 
Antero Resources Corp      
Operating expenses:      
Segment assets 11,230,288us-gaap_Assets
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
   
Operating segments | Exploration and production      
Sales and revenues:      
Sales and revenues 1,165,739us-gaap_Revenues
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= ar_ExplorationAndProductionMember
161,457us-gaap_Revenues
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= ar_ExplorationAndProductionMember
 
Operating expenses:      
Lease operating 7,783us-gaap_OilAndGasProductionExpense
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= ar_ExplorationAndProductionMember
4,869us-gaap_OilAndGasProductionExpense
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= ar_ExplorationAndProductionMember
 
Gathering, compression, processing, and transportation 205,679us-gaap_GasGatheringTransportationMarketingAndProcessingCosts
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= ar_ExplorationAndProductionMember
93,412us-gaap_GasGatheringTransportationMarketingAndProcessingCosts
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= ar_ExplorationAndProductionMember
 
Depletion, depreciation, and amortization 161,505us-gaap_DepreciationDepletionAndAmortization
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= ar_ExplorationAndProductionMember
82,180us-gaap_DepreciationDepletionAndAmortization
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= ar_ExplorationAndProductionMember
 
General and administrative expense 47,417us-gaap_GeneralAndAdministrativeExpense
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= ar_ExplorationAndProductionMember
45,316us-gaap_GeneralAndAdministrativeExpense
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= ar_ExplorationAndProductionMember
 
Other operating expenses 38,970us-gaap_OtherCostAndExpenseOperating
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= ar_ExplorationAndProductionMember
28,678us-gaap_OtherCostAndExpenseOperating
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= ar_ExplorationAndProductionMember
 
Total 461,354us-gaap_OperatingExpenses
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= ar_ExplorationAndProductionMember
254,455us-gaap_OperatingExpenses
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= ar_ExplorationAndProductionMember
 
Operating income (loss) 704,735us-gaap_OperatingIncomeLoss
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= ar_ExplorationAndProductionMember
(92,998)us-gaap_OperatingIncomeLoss
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= ar_ExplorationAndProductionMember
 
Segment assets 10,835,973us-gaap_Assets
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= ar_ExplorationAndProductionMember
6,175,588us-gaap_Assets
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= ar_ExplorationAndProductionMember
 
Capital expenditures for segment assets 646,842us-gaap_PaymentsToAcquirePropertyPlantAndEquipment
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= ar_ExplorationAndProductionMember
582,044us-gaap_PaymentsToAcquirePropertyPlantAndEquipment
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= ar_ExplorationAndProductionMember
 
Operating segments | Gathering and compression      
Sales and revenues:      
Sales and revenues 2,301us-gaap_Revenues
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= ar_GatheringAndCompressionMember
930us-gaap_Revenues
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= ar_GatheringAndCompressionMember
 
Operating expenses:      
Gathering, compression, processing, and transportation 7,988us-gaap_GasGatheringTransportationMarketingAndProcessingCosts
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= ar_GatheringAndCompressionMember
941us-gaap_GasGatheringTransportationMarketingAndProcessingCosts
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= ar_GatheringAndCompressionMember
 
Depletion, depreciation, and amortization 14,675us-gaap_DepreciationDepletionAndAmortization
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= ar_GatheringAndCompressionMember
6,108us-gaap_DepreciationDepletionAndAmortization
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= ar_GatheringAndCompressionMember
 
General and administrative expense 9,501us-gaap_GeneralAndAdministrativeExpense
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= ar_GatheringAndCompressionMember
3,776us-gaap_GeneralAndAdministrativeExpense
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= ar_GatheringAndCompressionMember
 
Other operating expenses 3,701us-gaap_OtherCostAndExpenseOperating
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= ar_GatheringAndCompressionMember
   
Total 35,865us-gaap_OperatingExpenses
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= ar_GatheringAndCompressionMember
10,825us-gaap_OperatingExpenses
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= ar_GatheringAndCompressionMember
 
Operating income (loss) 16,378us-gaap_OperatingIncomeLoss
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= ar_GatheringAndCompressionMember
948us-gaap_OperatingIncomeLoss
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= ar_GatheringAndCompressionMember
 
Segment assets 1,410,631us-gaap_Assets
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= ar_GatheringAndCompressionMember
704,529us-gaap_Assets
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= ar_GatheringAndCompressionMember
 
Capital expenditures for segment assets 125,988us-gaap_PaymentsToAcquirePropertyPlantAndEquipment
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= ar_GatheringAndCompressionMember
107,523us-gaap_PaymentsToAcquirePropertyPlantAndEquipment
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= ar_GatheringAndCompressionMember
 
Operating segments | Fresh Water Distribution      
Sales and revenues:      
Sales and revenues 3,867us-gaap_Revenues
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_WaterDistributionMember
2,594us-gaap_Revenues
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_WaterDistributionMember
 
Operating expenses:      
Lease operating 6,752us-gaap_OilAndGasProductionExpense
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_WaterDistributionMember
4,274us-gaap_OilAndGasProductionExpense
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_WaterDistributionMember
 
Depletion, depreciation, and amortization 6,120us-gaap_DepreciationDepletionAndAmortization
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_WaterDistributionMember
2,918us-gaap_DepreciationDepletionAndAmortization
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_WaterDistributionMember
 
General and administrative expense 2,418us-gaap_GeneralAndAdministrativeExpense
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_WaterDistributionMember
1,893us-gaap_GeneralAndAdministrativeExpense
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_WaterDistributionMember
 
Other operating expenses 860us-gaap_OtherCostAndExpenseOperating
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_WaterDistributionMember
1,057us-gaap_OtherCostAndExpenseOperating
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_WaterDistributionMember
 
Total 16,150us-gaap_OperatingExpenses
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_WaterDistributionMember
10,142us-gaap_OperatingExpenses
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_WaterDistributionMember
 
Operating income (loss) 18,280us-gaap_OperatingIncomeLoss
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_WaterDistributionMember
14,617us-gaap_OperatingIncomeLoss
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_WaterDistributionMember
 
Segment assets 421,320us-gaap_Assets
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_WaterDistributionMember
289,744us-gaap_Assets
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_WaterDistributionMember
 
Capital expenditures for segment assets 22,126us-gaap_PaymentsToAcquirePropertyPlantAndEquipment
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_WaterDistributionMember
60,030us-gaap_PaymentsToAcquirePropertyPlantAndEquipment
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_WaterDistributionMember
 
Operating segments | Marketing      
Sales and revenues:      
Sales and revenues 57,780us-gaap_Revenues
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= ar_MarketingMember
3,226us-gaap_Revenues
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= ar_MarketingMember
 
Operating expenses:      
Other operating expenses 73,349us-gaap_OtherCostAndExpenseOperating
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= ar_MarketingMember
11,981us-gaap_OtherCostAndExpenseOperating
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= ar_MarketingMember
 
Total 73,349us-gaap_OperatingExpenses
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= ar_MarketingMember
11,981us-gaap_OperatingExpenses
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= ar_MarketingMember
 
Operating income (loss) (15,569)us-gaap_OperatingIncomeLoss
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= ar_MarketingMember
(8,755)us-gaap_OperatingIncomeLoss
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= ar_MarketingMember
 
Segment assets 28,007us-gaap_Assets
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= ar_MarketingMember
   
Elimination of intersegment transaction      
Sales and revenues:      
Sales and revenues (80,855)us-gaap_Revenues
/ us-gaap_ConsolidationItemsAxis
= us-gaap_IntersegmentEliminationMember
(33,008)us-gaap_Revenues
/ us-gaap_ConsolidationItemsAxis
= us-gaap_IntersegmentEliminationMember
 
Operating expenses:      
Lease operating (6,433)us-gaap_OilAndGasProductionExpense
/ us-gaap_ConsolidationItemsAxis
= us-gaap_IntersegmentEliminationMember
(4,274)us-gaap_OilAndGasProductionExpense
/ us-gaap_ConsolidationItemsAxis
= us-gaap_IntersegmentEliminationMember
 
Gathering, compression, processing, and transportation (50,005)us-gaap_GasGatheringTransportationMarketingAndProcessingCosts
/ us-gaap_ConsolidationItemsAxis
= us-gaap_IntersegmentEliminationMember
(10,843)us-gaap_GasGatheringTransportationMarketingAndProcessingCosts
/ us-gaap_ConsolidationItemsAxis
= us-gaap_IntersegmentEliminationMember
 
General and administrative expense (287)us-gaap_GeneralAndAdministrativeExpense
/ us-gaap_ConsolidationItemsAxis
= us-gaap_IntersegmentEliminationMember
   
Total (56,725)us-gaap_OperatingExpenses
/ us-gaap_ConsolidationItemsAxis
= us-gaap_IntersegmentEliminationMember
(15,117)us-gaap_OperatingExpenses
/ us-gaap_ConsolidationItemsAxis
= us-gaap_IntersegmentEliminationMember
 
Operating income (loss) (24,130)us-gaap_OperatingIncomeLoss
/ us-gaap_ConsolidationItemsAxis
= us-gaap_IntersegmentEliminationMember
(17,891)us-gaap_OperatingIncomeLoss
/ us-gaap_ConsolidationItemsAxis
= us-gaap_IntersegmentEliminationMember
 
Segment assets (213,980)us-gaap_Assets
/ us-gaap_ConsolidationItemsAxis
= us-gaap_IntersegmentEliminationMember
(35,404)us-gaap_Assets
/ us-gaap_ConsolidationItemsAxis
= us-gaap_IntersegmentEliminationMember
 
Capital expenditures for segment assets (24,130)us-gaap_PaymentsToAcquirePropertyPlantAndEquipment
/ us-gaap_ConsolidationItemsAxis
= us-gaap_IntersegmentEliminationMember
(17,891)us-gaap_PaymentsToAcquirePropertyPlantAndEquipment
/ us-gaap_ConsolidationItemsAxis
= us-gaap_IntersegmentEliminationMember
 
Elimination of intersegment transaction | Exploration and production      
Sales and revenues:      
Sales and revenues 350us-gaap_Revenues
/ us-gaap_ConsolidationItemsAxis
= us-gaap_IntersegmentEliminationMember
/ us-gaap_StatementBusinessSegmentsAxis
= ar_ExplorationAndProductionMember
   
Elimination of intersegment transaction | Gathering and compression      
Sales and revenues:      
Sales and revenues 49,942us-gaap_Revenues
/ us-gaap_ConsolidationItemsAxis
= us-gaap_IntersegmentEliminationMember
/ us-gaap_StatementBusinessSegmentsAxis
= ar_GatheringAndCompressionMember
10,843us-gaap_Revenues
/ us-gaap_ConsolidationItemsAxis
= us-gaap_IntersegmentEliminationMember
/ us-gaap_StatementBusinessSegmentsAxis
= ar_GatheringAndCompressionMember
 
Elimination of intersegment transaction | Fresh Water Distribution      
Sales and revenues:      
Sales and revenues $ 30,563us-gaap_Revenues
/ us-gaap_ConsolidationItemsAxis
= us-gaap_IntersegmentEliminationMember
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_WaterDistributionMember
$ 22,165us-gaap_Revenues
/ us-gaap_ConsolidationItemsAxis
= us-gaap_IntersegmentEliminationMember
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_WaterDistributionMember