Investments in Unconsolidated Joint Ventures - Financial Position (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
ASSETS
Other assets	$ 38,889	$ 36,971
Total assets	2,946,122	2,929,774
LIABILITIES AND EQUITY
Accounts payable	114,026	128,371
Accrued expenses	122,871	150,155
Total liabilities and equity	2,946,122	2,929,774
Joint Ventures
ASSETS
Cash	6,063	8,093
Loans held for sale	36,660	27,958
Accounts receivable	1,266	884
Other assets	98	115
Total assets	44,087	37,050
LIABILITIES AND EQUITY
Accounts payable	423	700
Accrued expenses	1,190	1,988
Credit lines payable	34,841	26,775
Other liabilities	71	49
Members equity	7,562	7,538
Total liabilities and equity	$ 44,087	$ 37,050