CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
CASH FLOWS FROM OPERATING ACTIVITIES:
Consolidated net income	$ 644	$ 32,064	$ 14,880	$ 55,470
Adjustments to reconcile net income to net cash (used in) provided by operating activities:
Gain on originated mortgage servicing rights			(73,565)	(38,687)
Depreciation and amortization	28,946	33,425	74,986	61,729
Provision for credit losses on the financial guarantee liability			14,702	0
Provision for doubtful accounts			2,948	1,645
Equity-based compensation and allocation of net income to limited partnership units and FPUs			23,774	53,224
Employee loan amortization			31,926	18,504
Deferred tax provision (benefit)			(24)	956
Non-cash changes in acquisition related earnouts			(11,711)	431
Unrealized loss (gain) on non-marketable investments			26,837	(3,927)
Unrealized (gains) loss on loans held for sale			(25,158)	(25,698)
(Income) loss from an equity method investment	4,100	(4,800)	4,116	(4,750)
Realized (gains) loss on marketable securities	(2,200)	(1,900)	2,204	(1,812)
Unrealized (gains) loss on marketable securities			0	(5,110)
Change in valuation of derivative asset			1,339	28,967
Loan originations—loans held for sale			(5,059,288)	(3,498,483)
Loan sales—loans held for sale			4,210,307	3,696,135
Other			3,022	2,045
Consolidated net income (loss), adjusted for non-cash and non-operating items			(758,705)	340,639
Changes in operating assets and liabilities:
Receivables, net			98,188	(14,877)
Loans, forgivable loans and other receivables from employees and partners			(115,783)	(53,809)
Other assets			21,022	(43,491)
Accrued compensation			(99,807)	(41,623)
Accounts payable, accrued expenses and other liabilities			(73,379)	31,771
Payables to related parties			(26,631)	0
Net cash (used in) provided by operating activities			(955,095)	218,610
CASH FLOWS FROM INVESTING ACTIVITIES:
Payments for acquisitions, net of cash acquired			(5,850)	(16,203)
Proceeds from the sale of marketable securities	34,600	13,100	34,591	22,204
Purchase of non-marketable investments			0	(20,100)
Purchases of fixed assets			(11,977)	(10,740)
Purchase of mortgage servicing rights			(200)	(722)
Net cash (used in) provided by investing activities			16,564	(25,561)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from warehouse facilities			5,059,288	3,498,483
Principal payments on warehouse facilities			(4,204,840)	(3,677,675)
Payments to related parties			0	(3,760)
Settlement of pre-Spin-Off related party receivables			0	33,892
Borrowing of debt			365,000	110,000
Repayment of debt			0	(65,000)
Securities loaned			(36,735)	33,660
Treasury stock repurchases			0	(13,896)
Earnings distributions to limited partnership interests and noncontrolling interests			(74,715)	(93,868)
Dividends to stockholders			(19,563)	(33,961)
Payments on acquisition earn-outs			(1,759)	(2,917)
Payment of deferred financing costs			(2,879)	(81)
Net cash (used in) provided by financing activities			1,083,797	(215,123)
Net increase (decrease) in cash and cash equivalents and restricted cash			145,266	(22,074)
Cash and cash equivalents and restricted cash at beginning of period			221,872	187,406	$ 187,406
Cash and cash equivalents and restricted cash at end of period	$ 367,138	$ 165,332	367,138	165,332	$ 221,872
Cash paid during the period for:
Interest			20,466	18,611
Taxes			58,125	73,950
Supplemental disclosure of non-cash operating, investing and financing activities:
Right-of-use assets and liabilities			$ 13,416	$ 32,117