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Quarterly Data (unaudited) - Schedule of Quarterly Data (Detail) - USD ($) $ in Thousands	3 Months Ended								6 Months Ended	12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Net sales	$ 186,876	$ 211,528	$ 226,900	$ 189,604	$ 179,464	$ 209,933	$ 216,818	$ 180,696
Net Sales												$ 734,669
Income from operations	2,769	15,770	20,025	2,951	2,699	10,433	17,216	(2,950)
Net loss	$ (7,671)	$ (437)	$ 1,746	$ (7,844)	$ (8,635)	$ (40)	$ (4,543)	$ (9,865)
Successor
Net sales									$ 377,292	$ 814,908	$ 786,911
Income from operations									8,241	41,515	27,398
Net loss									$ (18,937)	$ (14,206)	$ (23,083)