Leases - Assets Held Under Capital Leases (Detail) - USD ($) $ in Thousands	Dec. 31, 2016	Jan. 02, 2016
Capital Leased Assets [Line Items]
Assets under capitalized leases	$ 65,234	$ 77,578
Less accumulated amortization and depreciation	25,163	31,372
Net assets under capitalized leases	40,071	46,206
Buildings and Improvements [Member]
Capital Leased Assets [Line Items]
Assets under capitalized leases	61,831	72,297
Equipment [Member]
Capital Leased Assets [Line Items]
Assets under capitalized leases	$ 3,403	$ 5,281