Business Acquisitions Schedule of intangible assets acquired (Details) - USD ($)	3 Months Ended	12 Months Ended
	Jun. 30, 2020	Dec. 31, 2019
Acquired Finite-Lived Intangible Assets [Line Items]
Business Combination, Consideration Transferred	$ 72,850,000
Business Acquisitions, Consideration Transferred, Liabilities Incurred	1,056,000
Payments to Acquire Businesses, Net of Cash Acquired	$ 73,906,000	$ 73,906,000