Reportable Segment Information - Schedule Of Financial Information For Company's Franchising Segment (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Reportable Segment Information [Line Items]
Revenues	$ 323,369	$ 210,771	$ 784,660	$ 580,679
Operating income (loss)	159,106	50,700	322,128	105,370
Income (loss) before income taxes	151,589	24,094	292,153	51,615
Corporate & Other
Reportable Segment Information [Line Items]
Revenues	13,532	6,368	30,504	21,785
Operating income (loss)	(10,410)	(20,240)	(38,141)	(49,400)
Income (loss) before income taxes	(20,749)	(45,114)	(66,121)	(95,983)
Intersegment Eliminations
Reportable Segment Information [Line Items]
Revenues	(866)	(314)	(1,857)	(1,188)
Operating income (loss)	0	0	0	0
Income (loss) before income taxes	0	0	0	0
Hotel Franchising | Operating Segments
Reportable Segment Information [Line Items]
Revenues	310,703	204,717	756,013	560,082
Operating income (loss)	169,516	70,940	360,269	154,770
Income (loss) before income taxes	$ 172,338	$ 69,208	$ 358,274	$ 147,598