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Revenues - Narrative (Details) - USD ($) $ in Thousands | 3 Months Ended |  |
--- | --- | --- | ---
Apr. 01, 2018 | Apr. 02, 2017 | Jan. 01, 2018 | Dec. 31, 2017
Revenue, Initial Application Period Cumulative Effect Transition [Line Items] |  |  |  |
Increase (decrease) in retained earnings | $ 795,977 |  |  | $ 833,610
Decrease in revenues | (605,565) | $ (551,381) |  |
Performance obligation satisfied in previous period | 200 |  |  |
Accrued rebates | 17,900 |  |  |
Accrued returns | 6,900 |  |  |
Estimated price adjustments, accounts receivable | 25,700 |  |  |
Contract with customer, deferred revenues | 97,800 |  | $ 104,400 |
Contract with customer, revenue recognized | 52,000 |  |  |
Deferred sales commission | 2,400 |  |  |
Sales commissions | 6,100 |  |  |
Accounting Standards Update 2014-09 |  |  |  |
Revenue, Initial Application Period Cumulative Effect Transition [Line Items] |  |  |  |
Increase (decrease) in retained earnings |  |  | $ 2,600 |
Decrease in revenues | $ 100 |  |  |

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