Reportable Segment Information - Schedule Of Financial Information For Company's Franchising Segment (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Reportable Segment Information [Line Items]
Revenues	$ 317,684	$ 295,441	$ 536,004	$ 504,835
Operating income (loss)	102,537	109,016	147,587	155,265
Income (loss) before income taxes	94,154	100,024	130,633	130,485
Corporate & Other
Reportable Segment Information [Line Items]
Revenues	4,055	3,255	7,383	7,027
Operating income (loss)	(16,799)	(13,649)	(42,206)	(26,758)
Income (loss) before income taxes	(24,200)	(23,209)	(56,008)	(46,137)
Hotel Franchising | Operating Segments
Reportable Segment Information [Line Items]
Revenues	313,629	292,186	528,621	497,808
Operating income (loss)	119,336	122,665	189,793	182,023
Income (loss) before income taxes	$ 118,354	$ 123,233	$ 186,641	$ 176,622