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Segment Information - Summary of Unallocated Corporate Overhead (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Apr. 01, 2017 | Mar. 26, 2016
Segment Reporting Information [Line Items] |  |
Stock-based compensation | $ 9,486 | $ 9,941
Unallocated corporate |  |
Segment Reporting Information [Line Items] |  |
Stock-based compensation | 5,583 | 6,108
Compensation, benefits, and other employee-related expenses | 14,962 | 12,541
External consulting and other service expenses | 5,767 | 5,176
Information technology | 2,393 | 3,132
Depreciation | 1,987 | 1,472
Acquisition and integration | 21 | 3,763
Other general unallocated corporate | 2,787 | 3,167
Total unallocated corporate expense | $ 33,500 | $ 35,359

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