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Recent Accounting Pronouncements - Narratives (Details) - USD ($) $ in Thousands |  | 3 Months Ended | 6 Months Ended
--- | --- | --- | ---
Jan. 01, 2019 | Jun. 28, 2019 | Jun. 28, 2019
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |
Operating lease right-of-use assets |  | $ 30,386 | $ 30,386
Operating Lease, Liability |  | 38,936 | 38,936
Impact of Topic 842 on Statement of Cash Flow |  | 2,494 | 4,624
Accounting Standards Update 2016-02 [Member] |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |
Operating lease right-of-use assets | $ 23,300 |  |
Operating Lease, Liability | 23,300 |  |
Cumulative Effect on Retained Earnings, Net of Tax | 0 |  |
Impact of Topic 842 on Statement of Cash Flow | 0 |  |
Accounting Standards Update 2018-07 [Member] |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |
Cumulative Effect on Retained Earnings, Net of Tax | $ 1,400 |  |
Level 3 [Member] |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |
Total assets measured and recorded at fair value |  | 0 | 0
Financial Liabilities Fair Value Disclosure |  | $ 0 | $ 0

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