Organization and Summary of Significant Accounting Policies - Property and Equipment (Details) - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Impairment of long-lived assets	$ 809,000	$ 0	$ 0
Property, Plant and Equipment [Line Items]
Depreciation	$ 26,800,000	$ 24,500,000	$ 22,600,000
Buildings
Property, Plant and Equipment [Line Items]
Useful life	40 years
Minimum | Manufacturing equipment
Property, Plant and Equipment [Line Items]
Useful life	4 years
Minimum | Furniture and fixtures
Property, Plant and Equipment [Line Items]
Useful life	3 years
Minimum | Land improvements
Property, Plant and Equipment [Line Items]
Useful life	10 years
Minimum | Leasehold improvements
Property, Plant and Equipment [Line Items]
Useful life	4 years
Maximum | Manufacturing equipment
Property, Plant and Equipment [Line Items]
Useful life	20 years
Maximum | Furniture and fixtures
Property, Plant and Equipment [Line Items]
Useful life	20 years
Maximum | Land improvements
Property, Plant and Equipment [Line Items]
Useful life	20 years
Maximum | Leasehold improvements
Property, Plant and Equipment [Line Items]
Useful life	25 years