Quarterly report pursuant to Section 13 or 15(d)

Condensed Consolidating Financial Information - Condensed Consolidating Statements of Comprehensive Income (Loss) (Details)

v2.4.0.8
Condensed Consolidating Financial Information - Condensed Consolidating Statements of Comprehensive Income (Loss) (Details) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended 6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Condensed Financial Statements, Captions [Line Items]        
Net income $ 47,852 $ 43,828 $ 130,410 $ 88,387
Foreign currency translation adjustment 6,816 (6,113) (462) (9,680)
Change in fair value of derivative instruments, net of taxes 0 [1] 356 [1] 0 [1] (1,074) [1]
Reclassification of settled contracts, net of taxes 0 [2] 1,404 [2] 0 [2] 3,201 [2]
Other comprehensive income (loss) 6,816 (4,353) (462) (7,553)
Comprehensive income 54,668 39,475 129,948 80,834
Parent Company [Member]
        
Condensed Financial Statements, Captions [Line Items]        
Net income 47,852 43,828 130,410 88,387
Foreign currency translation adjustment 6,816 (6,113) (462) (9,680)
Change in fair value of derivative instruments, net of taxes   356   (1,074)
Reclassification of settled contracts, net of taxes   1,404   3,201
Other comprehensive income (loss) 6,816 (4,353) (462) (7,553)
Comprehensive income 54,668 39,475 129,948 80,834
Guarantor [Member]
        
Condensed Financial Statements, Captions [Line Items]        
Net income 369 173 241 277
Foreign currency translation adjustment 0 0 0 0
Change in fair value of derivative instruments, net of taxes   0   0
Reclassification of settled contracts, net of taxes   0   0
Other comprehensive income (loss) 0 0 0 0
Comprehensive income 369 173 241 277
Non-Guarantor [Member]
        
Condensed Financial Statements, Captions [Line Items]        
Net income (2,229) (733) (4,226) (1,265)
Foreign currency translation adjustment 6,816 (6,113) (462) (9,680)
Change in fair value of derivative instruments, net of taxes   0   0
Reclassification of settled contracts, net of taxes   0   0
Other comprehensive income (loss) 6,816 (6,113) (462) (9,680)
Comprehensive income 4,587 (6,846) (4,688) (10,945)
Eliminations [Member]
        
Condensed Financial Statements, Captions [Line Items]        
Net income 1,860 560 3,985 988
Foreign currency translation adjustment (6,816) 6,113 462 9,680
Change in fair value of derivative instruments, net of taxes   0   0
Reclassification of settled contracts, net of taxes   0   0
Other comprehensive income (loss) (6,816) 6,113 462 9,680
Comprehensive income $ (4,956) $ 6,673 $ 4,447 $ 10,668
[1] Net of $0.0 million and $0.0 million in taxes for the three and six months ended June 30, 2014, respectively, and net of $0.2 million and $(0.7) million in taxes for the three and six months ended June 30, 2013, respectively.
[2] Net of $0.0 million and $0.0 million in taxes for the three and six months ended June 30, 2014, respectively, and net of $0.9 million and $2.0 million in taxes for the three and six months ended June 30, 2013, respectively.