Investments in Unconsolidated Joint Ventures - Financial Position (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
ASSETS
Other assets	$ 37,515	$ 36,971
Total assets	2,895,013	2,929,774
LIABILITIES AND EQUITY
Accounts payable	108,506	128,371
Accrued expenses	96,715	150,155
Total liabilities and equity	2,895,013	2,929,774
Joint Ventures
ASSETS
Cash	6,958	8,093
Loans held for sale	37,908	27,958
Accounts receivable	982	884
Other assets	169	115
Total assets	46,017	37,050
LIABILITIES AND EQUITY
Accounts payable	449	700
Accrued expenses	1,221	1,988
Credit lines payable	36,180	26,775
Other liabilities	508	49
Members equity	7,659	7,538
Total liabilities and equity	$ 46,017	$ 37,050