Property and Equipment Property and Equipment (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Property, Plant and Equipment [Line Items]
Depreciation expense	$ 54,108	$ 50,373	$ 53,214
Depreciation expense, cost of goods sold	12,900	10,700	10,200
Impairment of assets	$ 1,903	$ 0	435
Technology Equipment, Enterprise Resource Planning System [Member]
Property, Plant and Equipment [Line Items]
Contractual payments due subsequent to the cease use date			2,100
Acceleration of expense recognition of unamortized prepaid costs			700
Merger And Integration Costs [Member] | Technology Equipment, Enterprise Resource Planning System [Member]
Property, Plant and Equipment [Line Items]
Integration related costs			$ 2,800