Acquisition Purchase Price Allocation (Details) - USD ($) $ in Thousands	Sep. 29, 2018	Jun. 25, 2018	Jan. 22, 2018	Dec. 31, 2017
Business Acquisition [Line Items]
Goodwill	$ 542,235			$ 359,688
SPG
Business Acquisition [Line Items]
Accounts Receivables		$ 19,224
Inventory		43,170
Other current assets		95
Property, Plant, and Equipment		7,052
Identifiable Intangible Assets		160,850
Other noncurrent assets		12
Current liabilities		(26,058)
Deferred tax liabilities		(37,623)
Other noncurrent liabilities		(1,006)
Net Assets Acquired		165,716
Goodwill		175,476
Total Purchase Price		$ 341,192
PSS
Business Acquisition [Line Items]
Accounts Receivables			$ 3,898
Inventory			1,827
Other current assets			23
Property, Plant, and Equipment			103
Identifiable Intangible Assets			25,600
Other noncurrent assets			3
Accounts Payable			(294)
Current liabilities			(2,667)
Net Assets Acquired			28,493
Goodwill			8,804
Total Purchase Price			$ 37,297