Condensed Consolidated Statements of Income and Comprehensive Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Revenues
Gains from mortgage banking activities	$ 115,929	$ 99,170	$ 321,545	$ 282,916
Servicing fees	54,219	50,781	159,424	148,138
Net warehouse interest income	6,172	3,880	19,604	8,129
Escrow earnings and other interest income	15,163	11,938	43,847	28,562
Other	20,784	18,888	55,609	42,568
Total revenues	212,267	184,657	600,029	510,313
Expenses
Personnel	93,057	79,776	249,086	206,475
Amortization and depreciation	37,636	36,739	112,920	105,863
Provision (benefit) for credit losses	(772)	519	2,864	842
Interest expense on corporate debt	3,638	2,429	11,067	6,951
Other operating expenses	19,393	14,535	51,715	42,662
Total expenses	152,952	133,998	427,652	362,793
Income from operations	59,315	50,659	172,377	147,520
Income tax expense	15,246	12,902	42,102	32,023
Net income before noncontrolling interests	44,069	37,757	130,275	115,497
Less: net income (loss) from noncontrolling interests	26	41	(182)	(192)
Walker and Dunlop net income	44,043	37,716	130,457	115,689
Other comprehensive income (loss), net of tax:
Net change in unrealized gains and losses on pledged available-for-sale securities	123	16	1,090	(164)
Walker and Dunlop comprehensive income	$ 44,166	$ 37,732	$ 131,547	$ 115,525
Basic earnings per share (NOTE 11)	$ 1.42	$ 1.20	$ 4.22	$ 3.69
Diluted earnings per share (NOTE 11)	$ 1.39	$ 1.15	$ 4.11	$ 3.56
Basic weighted average shares outstanding	29,987	30,423	29,885	30,234
Diluted weighted average shares outstanding	30,782	31,606	30,742	31,401