Fair Value Measurements (Reconciliation of Changes in Financial Liabilities Fair Value Using Level 3 Inputs) (Details 2) - Level 3 $ in Thousands	9 Months Ended
	Sep. 30, 2021 USD ($)
Contingent consideration liabilities [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value, Beginning Balance	$ 37,174
Changes in fair value	(5,482)	[1]
Capital contributions	0
Accretion of value included in net income	1,157	[1]
Settlements or distributions	(19,942)
Foreign currency exchange rate changes	(12)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value, Ending Balance	12,895
Mandatorily redeemable noncontrolling interest [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value, Beginning Balance	9,240
Changes in fair value	2,703	[1]
Capital contributions	50
Accretion of value included in net income	0	[1]
Settlements or distributions	(72)
Foreign currency exchange rate changes	0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value, Ending Balance	$ 11,921

[1] Changes in fair value and accretion of value of contingent consideration liabilities are included in Selling, general and administrative expenses and the changes in fair value of mandatorily redeemable noncontrolling interest is included in Interest expense in the Company’s Condensed Consolidated Statements of Operations.