Goodwill and Other Intangible Assets - Amortization Expense (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 27, 2020	Jun. 29, 2019	Jun. 27, 2020	Jun. 29, 2019
Goodwill and Intangible Assets Disclosure [Abstract]
Capitalized software	$ 4,828	$ 4,612	$ 9,378	$ 9,207
Other definite-lived intangibles	$ 1,152	$ 1,570	$ 2,675	$ 3,145

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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