Leases - Schedule of Minimum Future Rental Income Under Non-Cancelable Operating Lease (Detail) $ in Thousands	Dec. 30, 2015 USD ($)
Property Subject to or Available for Operating Lease [Line Items]
Operating lease, minimum sublease rental	$ 5,675
Company Operated Properties [Member]
Property Subject to or Available for Operating Lease [Line Items]
Operating lease, minimum sublease rental	1,504
December 28, 2016 [Member]
Property Subject to or Available for Operating Lease [Line Items]
Operating lease, minimum sublease rental	1,075
December 28, 2016 [Member] | Company Operated Properties [Member]
Property Subject to or Available for Operating Lease [Line Items]
Operating lease, minimum sublease rental	224
December 27, 2017 [Member]
Property Subject to or Available for Operating Lease [Line Items]
Operating lease, minimum sublease rental	1,025
December 27, 2017 [Member] | Company Operated Properties [Member]
Property Subject to or Available for Operating Lease [Line Items]
Operating lease, minimum sublease rental	210
December 26, 2018 [Member]
Property Subject to or Available for Operating Lease [Line Items]
Operating lease, minimum sublease rental	864
December 26, 2018 [Member] | Company Operated Properties [Member]
Property Subject to or Available for Operating Lease [Line Items]
Operating lease, minimum sublease rental	210
December 25, 2019 [Member]
Property Subject to or Available for Operating Lease [Line Items]
Operating lease, minimum sublease rental	671
December 25, 2019 [Member] | Company Operated Properties [Member]
Property Subject to or Available for Operating Lease [Line Items]
Operating lease, minimum sublease rental	120
December 30, 2020 [Member]
Property Subject to or Available for Operating Lease [Line Items]
Operating lease, minimum sublease rental	389
December 30, 2020 [Member] | Company Operated Properties [Member]
Property Subject to or Available for Operating Lease [Line Items]
Operating lease, minimum sublease rental	124
Thereafter [Member]
Property Subject to or Available for Operating Lease [Line Items]
Operating lease, minimum sublease rental	1,651
Thereafter [Member] | Company Operated Properties [Member]
Property Subject to or Available for Operating Lease [Line Items]
Operating lease, minimum sublease rental	$ 616