Quarterly report pursuant to Section 13 or 15(d)

Subsequent Events (Details)

v2.4.0.8
Subsequent Events (Details) (USD $)
3 Months Ended 0 Months Ended 0 Months Ended 0 Months Ended
Mar. 31, 2014
Mar. 31, 2014
Credit Facility
Nov. 25, 2013
7.25% senior notes due 2019
Mar. 31, 2014
7.25% senior notes due 2019
Dec. 31, 2013
7.25% senior notes due 2019
Apr. 01, 2014
Subsequent event
Restricted stock units
Apr. 01, 2014
Subsequent event
Restricted stock units
Minimum
Apr. 01, 2014
Subsequent event
Restricted stock units
Maximum
May 02, 2014
Subsequent event
Credit Facility
May 06, 2014
Subsequent event
5% senior subordinated notes
Apr. 23, 2014
Subsequent event
7.25% senior notes due 2019
Subsequent events                      
Granted (in shares)           1,902,889          
Weighted average grant date fair value           $ 123,800,000          
Weighted average period for recognizing unrecognized stock-based compensation expense 3 years           3 years 6 months 4 years      
Percentage of the principal amount of the debt instrument which the entity may redeem with the proceeds from initial public offering     100.00%               100.00%
Face amount of the Credit Facility before amendment                 2,500,000,000    
Face amount of the Credit Facility   2,500,000,000             3,500,000,000    
Borrowing base before amendment                 2,000,000,000    
Borrowing base   2,000,000,000             3,000,000,000    
Lender commitments before amendment                 1,500,000,000    
Lender commitments   1,500,000,000             2,000,000,000    
Senior notes issued                   $ 600,000,000  
Interest rate (as a percent)       7.25% 7.25%         5.125%