Segment Reporting and Revenue - (Tables)

12 Months Ended

Dec. 31, 2019

Segment Reporting [Abstract]

Reconciliation of Operating Profit (Loss) from Segments to Consolidated

Information on each of the reportable and other segments and reconciliation to consolidated net loss is as follows:

	Year Ended December 31,
	2019			2018			2017
Real estate services
Brokerage revenue	$	496,480		$	406,293		$	330,372
Partner revenue	27,060			25,875			21,198
Total real estate services revenue	523,540			432,168			351,570
Cost of revenue	373,150			309,069			237,832
Gross profit	$	150,390		$	123,099		$	113,738
Properties
Revenue	240,507			44,993			10,491
Cost of revenue	245,189			46,613			10,384
Gross profit	$	(4,682	)	$	(1,620	)	$	107
Other
Revenue	17,634			9,882			7,975
Cost of revenue	19,239			11,937			10,000
Gross profit	$	(1,605	)	$	(2,055	)	$	(2,025	)
Intercompany eliminations
Revenue	(1,885		)	(123		)	—
Cost of revenue	(1,885		)	(123		)	—
Gross profit	$	—		$	—		$	—
Consolidated
Revenue	779,796			486,920			370,036
Cost of revenue	635,693			367,496			258,216
Gross profit	$	144,103		$	119,424		$	111,820
Operating expenses	223,349			163,358			127,792
Interest income	7,146			5,416			882
Interest expense	(8,928		)	(3,681		)	—
Other income, net	223			221			88
Net loss	$	(80,805	)	$	(41,978	)	$	(15,002	)

Contract with Customer, Asset and Liability

The following table presents the detail of accounts receivable for the periods presented:

	Year Ended December 31,
	2019			2018
Accounts receivable	$	19,388		$	15,529
Less: Allowance for doubtful accounts	(165		)	(166		)
Accounts receivable, net	$	19,223		$	15,363

The following table presents the activity in the allowance for doubtful accounts for the periods presented:

	Year Ended December 31,
	2019			2018			2017
Balance, beginning of period	$	166		$	160		$	150
Charges	(15		)	43			81
Write-offs	14			(37		)	(71		)
Balance, end of period	$	165		$	166		$	160