Revenue - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue	$ 367,865	$ 278,237	$ 625,493	$ 461,070
Total revenues	367,974	278,344	625,701	461,291
Over time
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue	323,162	262,267	563,861	431,456
Point in time
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue	44,703	15,970	61,632	29,614
Royalty fees
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue	121,449	106,242	212,188	172,289
Total revenues	121,449	106,242	212,188	172,289
Royalty fees | Over time
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue	121,449	106,242	212,188	172,289
Royalty fees | Point in time
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue	0	0	0	0
Initial franchise and relicensing fees
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue	6,222	7,328	14,624	12,755
Total revenues	6,222	7,328	14,624	12,755
Initial franchise and relicensing fees | Over time
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue	6,222	7,328	14,624	12,755
Initial franchise and relicensing fees | Point in time
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue	0	0	0	0
Procurement services
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue	21,803	12,092	33,486	23,283
Total revenues	21,803	12,092	33,486	23,283
Procurement services | Over time
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue	20,744	11,502	31,876	22,241
Procurement services | Point in time
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue	1,059	590	1,610	1,042
Marketing and reservation system
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue	189,382	135,988	316,019	227,509
Total revenues	189,382	135,988	316,019	227,509
Marketing and reservation system | Over time
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue	148,126	121,944	260,382	200,995
Marketing and reservation system | Point in time
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue	41,256	14,044	55,637	26,514
Owned hotels
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue	17,082	8,886	29,020	13,126
Total revenues	17,191	8,993	29,228	13,347
Owned hotels | Over time
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue	14,694	7,550	24,635	11,068
Owned hotels | Point in time
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue	2,388	1,336	4,385	2,058
Other
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Total revenues	11,927	7,701	20,156	12,108
Total Topic 606 revenues
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue	11,927	7,701	20,156	12,108
Total Topic 606 revenues | Over time
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue	11,927	7,701	20,156	12,108
Total Topic 606 revenues | Point in time
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue	0	0	0	0
Non-Topic 606 revenues
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Non-Topic 606 revenues	$ 109	$ 107	$ 208	$ 221