Summary of Significant Accounting Policies Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Apr. 01, 2017
Significant Accounting Policies [Line Items]
Non-cash share-based compensation expense	$ 145	$ 3,550
Interest paid	7,200	5,800
Income tax payments	$ 5,700	$ 6,200
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	21.00%	35.00%