Commitments (Schedule of Rent Expense and Sublease Income) (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
---|---|---|---|
Dec. 29, 2017 |
Dec. 30, 2016 |
Jan. 01, 2016 |
|
Commitments and Contingencies Disclosure [Abstract] | |||
Gross rental expense | $ 6,160 | $ 9,676 | $ 13,942 |
less: Sublease income | (1,225) | (3,553) | (5,205) |
Net rental expense | $ 4,935 | $ 6,123 | $ 8,737 |