Condensed Consolidated Statements of Income and Comprehensive Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Revenues
Loan origination and debt brokerage fees, net	$ 77,907	$ 65,610	$ 154,280	$ 123,407
Fair value of expected net cash flows from servicing, net	90,369	41,271	158,369	82,209
Servicing fees	56,862	53,006	112,296	105,205
Net warehouse interest income	9,401	6,411	14,896	13,432
Escrow earnings and other interest income	2,671	14,616	13,414	28,684
Other revenues	15,615	19,411	33,727	34,825
Total revenues	252,825	200,325	486,982	387,762
Expenses
Personnel	106,920	84,398	196,445	156,029
Amortization and depreciation	42,317	37,381	82,079	75,284
Provision for credit losses	4,903	961	28,546	3,636
Interest expense on corporate debt	2,078	3,777	4,938	7,429
Other operating costs	13,069	16,830	31,159	32,322
Total expenses	169,287	143,347	343,167	274,700
Income from operations	83,538	56,978	143,815	113,062
Income tax expense	21,479	14,832	34,151	26,856
Net income before noncontrolling interests	62,059	42,146	109,664	86,206
Less: net income (loss) from noncontrolling interests		(50)	(224)	(208)
Walker and Dunlop net income	62,059	42,196	109,888	86,414
Other comprehensive income (loss), net of tax:
Net change in unrealized gains and losses on pledged available-for-sale securities	1,430	666	(487)	967
Walker and Dunlop comprehensive income	$ 63,489	$ 42,862	$ 109,401	$ 87,381
Basic earnings per share (NOTE 10)	$ 1.98	$ 1.36	$ 3.52	$ 2.80
Diluted earnings per share (NOTE 10)	$ 1.95	$ 1.33	$ 3.44	$ 2.72
Basic weighted average shares outstanding	30,352	29,985	30,288	29,834
Diluted weighted average shares outstanding	30,860	30,744	30,960	30,720