Goodwill and Other Intangible Assets - Intangible Assets and Amortization Expense (Details) - USD ($)	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Finite-Lived Intangible Assets
Gross carrying amount	$ 92,100,000		$ 92,100,000
Accumulated amortization	39,400,000		36,100,000
Unamortized intangible assets, gross carrying amount	35,700,000		35,700,000
Intangible assets, net	88,400,000		91,700,000
Amortization expense	3,300,000	$ 1,800,000
Q4 2018	9,700,000
2019	13,000,000.0
2020	7,700,000
2021	7,100,000
2022	7,000,000.0
Trademarks
Finite-Lived Intangible Assets
Unamortized intangible assets, gross carrying amount	32,000,000.0		32,000,000.0
In Process Research and Development [Member]
Finite-Lived Intangible Assets
Unamortized intangible assets, gross carrying amount	3,700,000		3,700,000
Trademarks
Finite-Lived Intangible Assets
Gross carrying amount	1,000,000.0		1,000,000.0
Accumulated amortization	200,000		200,000
Patents
Finite-Lived Intangible Assets
Gross carrying amount	40,800,000		40,800,000
Accumulated amortization	32,700,000		31,500,000
Customer relationships
Finite-Lived Intangible Assets
Gross carrying amount	12,000,000.0		12,000,000.0
Accumulated amortization	4,000,000.0		3,600,000
Developed technology
Finite-Lived Intangible Assets
Gross carrying amount	36,500,000		36,500,000
Accumulated amortization	2,300,000		700,000
Non-competition agreements
Finite-Lived Intangible Assets
Gross carrying amount	1,800,000		1,800,000
Accumulated amortization	$ 200,000		$ 100,000