Stock Repurchase Program (Details) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended	9 Months Ended
Sep. 29, 2018	Sep. 30, 2017	Sep. 29, 2018	Sep. 30, 2017	Jan. 31, 2017
Class of Stock Disclosures [Abstract]
Board authorized amount					$ 525,000
Remaining authorized repurchase amount	$ 275,000		$ 275,000
Shares repurchased	1,098	1,331	3,611	1,331
Total cost of repurchased shares	$ 50,011	$ 50,013	$ 150,036	$ 50,013

Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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