Summary of Significant Accounting Policies - Stock-Based Compensation Expense (Details) - USD ($) $ in Thousands |
Jan. 01, 2018 |
Jan. 01, 2017 |
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| New Accounting Pronouncements or Change in Accounting Principle [Line Items] | ||
| Deferred income tax assets, net | $ 0 | |
| Accounting Standards Update 2016-09 | ||
| New Accounting Pronouncements or Change in Accounting Principle [Line Items] | ||
| Deferred income tax assets, net | $ 4,000 | |
| Credit to retained earnings | (4,454) | 4,000 |
| Accounting Standards Update 2016-09 | Retained Earnings | ||
| New Accounting Pronouncements or Change in Accounting Principle [Line Items] | ||
| Credit to retained earnings | $ (4,454) | $ 4,000 |
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- Definition Amount after tax of increase (decrease) to equity or (increase) decrease to net assets, resulting from the cumulative effect adjustment of a new accounting principle applied in the period of adoption. No definition available.
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- Definition Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, with jurisdictional netting. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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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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