Goodwill and Other Intangible Assets - Additional Information (Detail) - USD ($)	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Finite-Lived Intangible Assets [Line Items]
Goodwill, impairment charges			$ 0
Impairment of indefinite-lived intangibles			0		$ 0
Accumulated amortization including foreign subsidiaries	$ 75,875,000		75,875,000		$ 56,782,000
Amortization expense including adjustments from fluctuations in foreign currency exchange rates	9,491,000	$ 9,518,000	18,954,000	$ 19,035,000
Successor [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization expense, 2015	37,938,000		37,938,000
Future amortization expense, 2016	37,938,000		37,938,000
Future amortization expense, 2017	37,938,000		37,938,000
Future amortization expense, 2018	37,908,000		37,908,000
Future amortization expense, 2019	37,878,000		37,878,000
Future amortization expense, 2020	$ 37,496,000		$ 37,496,000