Employee Benefit Plans - Schedule of Pension Benefit Plan Obligations and Funded Status (Detail) (USD $) In Thousands, unless otherwise specified	8 Months Ended	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2012
Change in projected benefit obligation:
Projected benefit obligation at beginning of period		$ (21,181)
Business combination			(18,063)
Service cost	(766)	(1,198)	(766)
Interest cost	(494)	(745)	(494)
Actuarial gain (loss)		779	(1,862)
Benefit payments		(1)
Foreign currency exchange rate changes		(1,008)	4
Projected benefit obligation at end of period	(21,181)	(23,354)	(21,181)
Change in plan assets:
Fair value of plan assets at beginning of period		18,620
Business combination			18,063
Actual return on plan assets		1,281	592
Foreign currency exchange rate changes		872	(35)
Fair value of plan assets at end of period	18,620	20,773	18,620
Funded status at end of period	$ (2,561)	$ (2,581)	$ (2,561)