Accrued Expenses - Schedule of Accrued Expenses (Detail) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Payables and Accruals [Abstract]
Accrued bonuses	$ 15,866	$ 11,995
Accrued payroll and severance	10,704	6,479
Accrued taxes	104,623	5,977
Accrued commissions/rebates	43,467	49,157
Other	64,152	77,069
Total	$ 238,812	$ 150,677