Business Combinations Schedule of Finite Lived Intangibles Acquired (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2019 USD ($)
Customer lists/relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived Intangible Assets Acquired	$ 29,900
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	15 years
Technology and other intangibles
Acquired Finite-Lived Intangible Assets [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]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived Intangible Assets Acquired	$ 31,700