Commitments and Contingencies (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Lease and Contractual Commitments [Abstract]
Lease and contractual commitments	$ 212,900
Accrued amount of lease and contractual commitments	58,000
Contingent Consideration [Abstract]
Asset acquisition, contingent consideration liability	0	$ 1,200	$ 0
Asset Acquisition Contingent Consideration [Member]
Contingent Consideration [Abstract]
Asset acquisition, contingent consideration liability	$ 800	$ 5,300