Revenue - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue	$ 257,627	$ 182,832
Total revenues	257,727	182,947
Over time
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue	240,700	169,189
Point in time
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue	16,927	13,643
Royalty fees
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue	90,739	66,047
Total revenues	90,739	66,047
Royalty fees | Over time
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue	90,739	66,047
Royalty fees | Point in time
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue	0	0
Initial franchise and relicensing fees
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue	8,402	5,427
Total revenues	8,402	5,427
Initial franchise and relicensing fees | Over time
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue	8,402	5,427
Initial franchise and relicensing fees | Point in time
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue	0	0
Procurement services
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue	11,683	11,191
Total revenues	11,683	11,191
Procurement services | Over time
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue	11,131	10,739
Procurement services | Point in time
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue	552	452
Marketing and reservation system
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue	126,637	91,521
Total revenues	126,637	91,521
Marketing and reservation system | Over time
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue	112,259	79,052
Marketing and reservation system | Point in time
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue	14,378	12,469
Owned hotels
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue	11,937	4,239
Total revenues	12,037	4,354
Owned hotels | Over time
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue	9,940	3,517
Owned hotels | Point in time
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue	1,997	722
Other
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Total revenues	8,229	4,407
Other
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue	8,229	4,407
Other | Over time
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue	8,229	4,407
Other | Point in time
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue	0	0
Other
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Non-Topic 606 revenues	$ 100	$ 115