Income Taxes - Additional Information (Detail) - USD ($)	12 Months Ended
	Jan. 01, 2017	Dec. 31, 2016	Jan. 03, 2016	Dec. 31, 2015	Dec. 28, 2014
Income Tax [Line Items]
Effective income tax rate	38.90%		34.40%		35.10%
Effective income tax rate with noncontrolling interest	41.80%		36.60%		38.40%
State tax rate	3.00%	4.00%		5.00%
Income Tax expense (benefit), adjustment of deferred tax liability	$ 200,000		$ (1,100,000)
Uncertain tax positions	2,900,000		2,900,000
Uncertain tax positions that would affect tax rate	2,900,000		2,900,000
Change in uncertain tax positions, expected material impact on consolidated financial statements	0
Less: Valuation allowance for deferred tax assets	$ 1,618,000		$ 2,307,000
Earliest Tax Year [Member] | Internal Revenue Service (IRS) [Member]
Income Tax [Line Items]
Tax year open for examination	2002
Liability Revaluation [Member]
Income Tax [Line Items]
Income Tax expense (benefit), adjustment of deferred tax liability	$ 800,000
State and Local Jurisdiction [Member]
Income Tax [Line Items]
Income Tax expense (benefit), adjustment of deferred tax liability	(600,000)
Federal net operating losses	$ 39,800,000
Net operating loss carryforwards expiration ending year	2035
State and Local Jurisdiction [Member] | Earliest Tax Year [Member]
Income Tax [Line Items]
Tax year open for examination	1998
Domestic Tax Authority [Member]
Income Tax [Line Items]
Federal net operating losses	$ 1,600,000
Net operating loss carryforwards expiration ending year	2032