Income Taxes - Additional Information (Detail) - USD ($)	3 Months Ended
	Apr. 01, 2018	Apr. 02, 2017	Dec. 31, 2017
Income Tax [Line Items]
Effective income tax rate	48.90%	45.50%
Effective income tax rate with noncontrolling interest	47.80%	42.20%
Adjustments to net deferred tax liability	$ 0
Uncertain tax positions	2,600,000		$ 2,400,000
Uncertain tax positions that would affect tax rate	2,600,000		$ 2,400,000
Change in uncertain tax positions, expected material impact on consolidated condensed financial statements	$ 0
Earliest Tax Year [Member] | Internal Revenue Service (IRS) [Member]
Income Tax [Line Items]
Tax year open for examination	2002
Earliest Tax Year [Member] | State and Local Jurisdiction [Member]
Income Tax [Line Items]
Tax year open for examination	1998