Income Taxes - Effective Tax Rate on Pre-tax Income Differs from the U.S. Statutory Rate (Detail) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Income Tax Disclosure [Abstract]      
Taxes at U.S. statutory rate $ (16,664) $ (129) $ 16,745
State and local income taxes 571 603 1,493
Non U.S. statutory rates, including credits 899 (4,988) (5,185)
U.S. tax effect of foreign earnings and dividends (2,112) (942) (2,890)
Unremitted earnings (189) (157) 3,087
Stock-based compensation 14,679 16,430 (8,780)
Non-deductible interest (2,818) (1,465) 1,882
Change in valuation allowances 3,652 2,992 7,064
Uncertain tax positions   (229) (1,057)
Withholding taxes on interest and royalties 260 3,814 (3,943)
U.S. manufacturing deduction 3,343 3,112 2,466
Provision to return adjustments 5,401 5,258 5,203
Non-deductible other expenses 15,589 1,573 2,004
Government subsidy income   (4,219)  
Impact on foreign currency exchange (2,643) 71 291
Other-net (249) 125 (820)
Total Provision for (benefit from) income taxes $ 19,719 $ 21,849 $ 17,560
Effective tax rate (41.00%) (5921.00%) 37.00%