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Operating Segments (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020
Segment Reporting Information [Line Items]
Asset Impairment Charges		$ 163,400
Revenue from Contract with Customer, Excluding Assessed Tax	$ 256,695	378,911
Third party products	13,622	15,976
Fixed fee contracts	7,692	8,919
Other	1,115	5,375
Operating Income (Loss)	24,602	(117,805)
Depreciation and amortization	43,174	$ 43,699
Assets	$ 3,345,200		$ 3,258,925

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Revenue generated from third party products through the sale of hotel rooms, ground transportation (rental cars and hotel shuttle products), attraction and show tickets and fees we receive from other merchants selling products through our website, net of amounts paid or payable to wholesale providers, travel agent commissions and credit card processing fees associated with sale of third party products.

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