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Income Taxes - Reconciliation to Federal Statutory Amount (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 29, 2018 | Dec. 30, 2017 | Dec. 31, 2016
Income Tax Disclosure [Abstract] |  |  |
Expense (benefit) from income taxes computed at the federal statutory tax rate | $ (12,643) | $ 3,355 | $ 6,022
Expense (benefit) from state income taxes, net of federal benefit | (2,498) | 253 | 595
Valuation allowance change | 1,974 | (87,137) | (6,319)
Transaction costs | 1,327 | 0 | 0
Nondeductible executive compensation | 936 | 280 | 132
Share-based compensation - excess tax benefit | (1,494) | (47) | 0
Other nondeductible items | 344 | 431 | 271
Uncertain tax positions | (951) | 0 | 0
Tax rate change used to measure deferred taxes | 681 | 0 | 0
Alternative minimum tax | 0 | 0 | 232
Tax Cuts and Jobs Act of 2017 | 0 | 29,387 | 0
Other | 170 | 69 | 188
(Benefit from) provision for income taxes | $ (12,154) | $ (53,409) | $ 1,121

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