Leases - Property and Equipment Owned Assets Leased to Others (Detail) - USD ($) $ in Thousands	Dec. 31, 2016	Jan. 02, 2016
Capital Leased Assets [Line Items]
Property and equipment, owned assets, leased	$ 17,808	$ 14,148
Less accumulated amortization and depreciation	7,625	5,890
Net property	10,183	8,258
Land and improvements [Member]
Capital Leased Assets [Line Items]
Property and equipment, owned assets, leased	3,860	3,508
Building [Member]
Capital Leased Assets [Line Items]
Property and equipment, owned assets, leased	$ 13,948	$ 10,640