Quarterly report pursuant to Section 13 or 15(d)

Shareholders' (Deficit) Equity - Summary of Changes in Shareholders' (Deficit) Equity (Detail)

v2.4.0.8
Shareholders' (Deficit) Equity - Summary of Changes in Shareholders' (Deficit) Equity (Detail) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2014
Sep. 30, 2013
Equity [Abstract]        
Total shareholders' equity as of December 31, 2013     $ 551,446  
Net income 11,248 141,950 205,408 403,985
Issuance of common shares from exercise of stock options, SARs, restricted stock grants, and employee stock purchase plan     2,401  
Excess tax benefit from exercise of stock options, SARs and restricted stock grants     4,176  
Additional capital from share-based compensation     34,431  
Repurchases of common shares, including Forward Transactions     (1,278,420)  
Allocation to additional paid-in capital due to issuance of the Convertible Notes and Forward Transactions.     249,797  
Reduction in additional paid-in capital from the Capped Call Transactions     (123,825)  
Dividends paid and received, net     (26,984)  
Foreign currency translation adjustment, net of income taxes (39,899) 15,025 (39,717) (2,906)
Unrealized gain on derivatives, net of income taxes 3,996 1,887 821 7,230
Unrealized loss on available-for-sale investments, net of income taxes (225)   (95)  
Total shareholders' deficit as of September 30, 2014 $ (420,561)   $ (420,561)