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Income Tax Expense (Benefit) (Detail) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended 12 Months Ended
Dec. 31, 2013
Sep. 30, 2013
Jun. 30, 2013
Mar. 31, 2013
Dec. 31, 2012
Sep. 30, 2012
Jun. 30, 2012
Mar. 31, 2012
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Federal                      
Current                 $ 7,509 $ 1,236 $ 4,150
Deferred                 9,491 56 6,456
Total                 17,000 1,292 10,606
State                      
Current                 2,492 1,150 1,649
Deferred                 (1,687) (142) 621
Total                 805 1,008 2,270
Foreign                      
Current                 9,717 9,258 5,149
Deferred                 1,769 4,864 436
Total                 11,486 14,122 5,585
Income tax provision $ 24,108 $ 5,347 $ 2,280 $ (2,444) $ 24,347 $ (1,175) $ (6,195) $ (555) $ 29,291 $ 16,422 $ 18,461