Fair Value Measurements (Fair Value of Assets and Liabilities Measured on Recurring Basis) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Level 1
Assets
Fair value of derivatives	$ 0	$ 0
Contingent consideration arrangements	0
Liabilities
Fair value of derivatives	0	0
Contingent consideration arrangements	0
Total net assets (liabilities)	0	0
Level 2
Assets
Fair value of derivatives	9,338	65,114
Contingent consideration arrangements	25,934
Liabilities
Fair value of derivatives	(34,132)	(17,920)
Contingent consideration arrangements	(69,760)
Total net assets (liabilities)	(68,620)	47,194
Level 3
Assets
Fair value of derivatives	0	0
Contingent consideration arrangements	0
Liabilities
Fair value of derivatives	0	0
Contingent consideration arrangements	0
Total net assets (liabilities)	$ 0	$ 0

Amount of asset recognized arising from contingent consideration in a business combination.

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Amount of liability recognized arising from contingent consideration in a business combination.

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