Deferred Revenue - Components Of Deferred Revenue (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Contract With Customers, Liability And Non-606 Deferred Revenue [Line Items]
Total	$ 177,892	$ 150,601
Current portion	67,614	52,142
Long-term portion	110,278	98,459
Initial franchising and relicensing fees
Contract With Customers, Liability And Non-606 Deferred Revenue [Line Items]
Total	104,287	94,058
Loyalty programs
Contract With Customers, Liability And Non-606 Deferred Revenue [Line Items]
Total	53,749	39,102
System implementation fees
Contract With Customers, Liability And Non-606 Deferred Revenue [Line Items]
Total	8,764	8,563
Procurement services fees
Contract With Customers, Liability And Non-606 Deferred Revenue [Line Items]
Total	7,872	8,531
Other
Contract With Customers, Liability And Non-606 Deferred Revenue [Line Items]
Total	$ 3,220	$ 347