Franchising and Marketing Activities (Tables)

12 Months Ended

Dec. 31, 2019

Franchising and Marketing Activities [Abstract]

Schedule of the Number of Franchised and Company Owned Outlets in Operation [Table Text Block]

The number of franchised and company owned offices in operation are as follows:

	(Unaudited) As of December 31,
	2019	2018	2017
Franchised (domestic and international):
Century 21®	11,640	9,637	7,973
ERA®	2,301	2,331	2,298
Coldwell Banker®	2,323	2,380	2,330
Coldwell Banker Commercial®	159	171	180
Sotheby’s International Realty®	962	949	905
Better Homes and Gardens® Real Estate	391	362	353
Total Franchised	17,776	15,830	14,039
Company owned:
Coldwell Banker®	634	672	707
Sotheby’s International Realty®	37	41	41
Corcoran®/Other	42	42	41
Total Company Owned	713	755	789

Schedule of the Changes in the Number of Franchised and Company Owned Outlets [Table Text Block]

The number of franchised and company owned offices (in the aggregate) changed as follows:

	(Unaudited) For the Year Ended December 31,
	2019	2018	2017
Franchised (domestic and international):
Beginning balance	15,830	14,039	13,314
Additions	2,399	2,149	1,137
Terminations	(453)	(358)	(412)
Ending balance	17,776	15,830	14,039
Company owned:
Beginning balance	755	789	789
Additions	4	8	20
Closures	(46)	(42)	(20)
Ending balance	713	755	789