Revenue - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenues	$ 217,806	$ 218,040
Non-Topic 606 revenues	369	280
Total revenues	218,175	218,320
Over time
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenues	204,948	211,594
Point in time
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenues	12,858	6,446
Royalty fees
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenues	70,339	80,353
Royalty fees | Over time
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenues	70,339	80,353
Royalty fees | Point in time
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenues	0	0
Initial franchise and relicensing fees
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenues	7,284	6,807
Initial franchise and relicensing fees | Over time
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenues	7,284	6,807
Initial franchise and relicensing fees | Point in time
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenues	0	0
Procurement services
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenues	13,797	11,947
Procurement services | Over time
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenues	13,288	11,487
Procurement services | Point in time
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenues	509	460
Marketing and reservation system
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenues	110,385	110,064
Marketing and reservation system | Over time
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenues	99,329	104,078
Marketing and reservation system | Point in time
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenues	11,056	5,986
Owned hotels
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenues	9,314	0
Total revenues	9,422	0
Owned hotels | Over time
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenues	8,021	0
Owned hotels | Point in time
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenues	1,293	0
Other
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenues	6,687	8,869
Total revenues	6,948	9,149
Other | Over time
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenues	6,687	8,869
Other | Point in time
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenues	$ 0	$ 0