Summary of Significant Accounting Policies - Recent Accounting Pronouncements (Details) - USD ($) $ in Thousands |
Dec. 28, 2017 |
Dec. 29, 2016 |
Dec. 31, 2015 |
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| New Accounting Pronouncements or Change in Accounting Principle [Line Items] | |||
| Retained earnings | $ 119,550 | $ 16,754 | |
| Additional paid-in capital | $ 323,419 | $ 117,270 | |
| Accounting Standards Update 2016-09 [Member] | Restatement Adjustment [Member] | |||
| New Accounting Pronouncements or Change in Accounting Principle [Line Items] | |||
| Retained earnings | $ (148) | ||
| Additional paid-in capital | $ 238 |
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- Definition Value received from shareholders in common stock-related transactions that are in excess of par value or stated value and amounts received from other stock-related transactions. Includes only common stock transactions (excludes preferred stock transactions). May be called contributed capital, capital in excess of par, capital surplus, or paid-in capital. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition The cumulative amount of the reporting entity's undistributed earnings or deficit. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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