Business Acquisitions - Net Assets Acquired (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Business Combinations - Schedule of Finite-Lived Intangible Assets [Abstract]
Business Acquisition, Goodwill, Expected Tax Deductible Amount	$ 34,999
Business Combination, Recognized Identifiable Assets Acquired, Goodwill and Liabilities Assumed, Net
Current assets	6,221
Property, plant and equipment	2,567
Goodwill	106,056	$ 71,057	$ 71,057
Other assets	29
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities	(2,710)
Less fair value of liabilities acquired	73,906	$ 0	$ 19,121
Business Combination, Contingent Consideration, Liability	1,056
Business Combination, Consideration Transferred	72,850
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	32,800
Fair Value of Assets Acquired	76,616
Customer Lists [Member]
Business Acquisition [Line Items]
Finite-lived Intangible Assets Acquired	$ 31,000
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	15 years
Developed technology and other intangible assets
Business Acquisition [Line Items]
Finite-lived Intangible Assets Acquired	$ 1,800
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	5 years
Finite-Lived Intangible Assets [Member]
Business Acquisition [Line Items]
Finite-lived Intangible Assets Acquired	$ 32,800