Revenue (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Disaggregation of Revenue [Line Items]
Topic 606 revenues	$ 774,072	$ 1,114,820	$ 1,041,304
Total revenues	774,072	1,114,820	1,041,304
Effect of Topic 606 Revenues
Disaggregation of Revenue [Line Items]
Topic 606 revenues	772,598	1,113,662	1,039,931
Effect of Topic 606 Revenues | Transferred over Time
Disaggregation of Revenue [Line Items]
Topic 606 revenues	690,580	1,029,461	982,629
Effect of Topic 606 Revenues | Transferred at Point in Time
Disaggregation of Revenue [Line Items]
Topic 606 revenues	82,018	84,201	57,302
Effect of Non-Topic 606 Revenues
Disaggregation of Revenue [Line Items]
Non-Topic 606 revenues	1,474	1,158	1,373
Royalty fees
Disaggregation of Revenue [Line Items]
Topic 606 revenues	263,308	388,151	376,676
Royalty fees | Effect of Topic 606 Revenues
Disaggregation of Revenue [Line Items]
Topic 606 revenues	263,308	388,151	376,676
Royalty fees | Effect of Topic 606 Revenues | Transferred over Time
Disaggregation of Revenue [Line Items]
Topic 606 revenues	263,308	388,151	376,676
Royalty fees | Effect of Topic 606 Revenues | Transferred at Point in Time
Disaggregation of Revenue [Line Items]
Topic 606 revenues	0	0	0
Initial franchise and relicensing fees
Disaggregation of Revenue [Line Items]
Topic 606 revenues	25,906	27,489	26,072
Initial franchise and relicensing fees | Effect of Topic 606 Revenues
Disaggregation of Revenue [Line Items]
Topic 606 revenues	25,906	27,489	26,072
Initial franchise and relicensing fees | Effect of Topic 606 Revenues | Transferred over Time
Disaggregation of Revenue [Line Items]
Topic 606 revenues	25,906	27,489	26,072
Initial franchise and relicensing fees | Effect of Topic 606 Revenues | Transferred at Point in Time
Disaggregation of Revenue [Line Items]
Topic 606 revenues	0	0	0
Procurement services
Disaggregation of Revenue [Line Items]
Topic 606 revenues	45,242	61,429	52,088
Procurement services | Effect of Topic 606 Revenues
Disaggregation of Revenue [Line Items]
Topic 606 revenues	45,242	61,429	52,088
Procurement services | Effect of Topic 606 Revenues | Transferred over Time
Disaggregation of Revenue [Line Items]
Topic 606 revenues	42,919	58,248	49,496
Procurement services | Effect of Topic 606 Revenues | Transferred at Point in Time
Disaggregation of Revenue [Line Items]
Topic 606 revenues	2,323	3,181	2,592
Marketing and reservation system
Disaggregation of Revenue [Line Items]
Topic 606 revenues	402,568	577,426	543,677
Marketing and reservation system | Effect of Topic 606 Revenues
Disaggregation of Revenue [Line Items]
Topic 606 revenues	402,568	577,426	543,677
Marketing and reservation system | Effect of Topic 606 Revenues | Transferred over Time
Disaggregation of Revenue [Line Items]
Topic 606 revenues	325,785	499,368	490,025
Marketing and reservation system | Effect of Topic 606 Revenues | Transferred at Point in Time
Disaggregation of Revenue [Line Items]
Topic 606 revenues	76,783	78,058	53,652
Owned hotels
Disaggregation of Revenue [Line Items]
Total revenues	20,168	20,282	0
Owned hotels | Effect of Topic 606 Revenues
Disaggregation of Revenue [Line Items]
Topic 606 revenues	19,736	20,166	0
Owned hotels | Effect of Topic 606 Revenues | Transferred over Time
Disaggregation of Revenue [Line Items]
Topic 606 revenues	16,824	17,345	0
Owned hotels | Effect of Topic 606 Revenues | Transferred at Point in Time
Disaggregation of Revenue [Line Items]
Topic 606 revenues	2,912	2,821	0
Other
Disaggregation of Revenue [Line Items]
Total revenues	16,880	40,043	42,791
Other | Effect of Topic 606 Revenues
Disaggregation of Revenue [Line Items]
Topic 606 revenues	15,838	39,001	41,418
Other | Effect of Topic 606 Revenues | Transferred over Time
Disaggregation of Revenue [Line Items]
Topic 606 revenues	15,838	38,860	40,360
Other | Effect of Topic 606 Revenues | Transferred at Point in Time
Disaggregation of Revenue [Line Items]
Topic 606 revenues	$ 0	$ 141	$ 1,058