Long-lived Assets and Goodwill - Changes in Goodwill (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2019	Mar. 31, 2018
Goodwill [Roll Forward]
Goodwill. Beginning Balance	$ 168,996
Acquisitions	0
Foreign Exchange	(276)
Impairment	(3,097)	$ 0
Goodwill, Ending Balance	165,623
Hotel Franchising
Goodwill [Roll Forward]
Goodwill. Beginning Balance	159,197
Acquisitions	0
Foreign Exchange	0
Impairment	0
Goodwill, Ending Balance	159,197
Other Segments
Goodwill [Roll Forward]
Goodwill. Beginning Balance	9,799
Acquisitions	0
Foreign Exchange	(276)
Impairment	(3,097)
Goodwill, Ending Balance	$ 6,426

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.

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Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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