CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN PARTNERS' CAPITAL - USD ($) $ in Thousands	Total	LCIF [Member]
Beginning balance (in units) at Dec. 31, 2016		83,241,396
Beginning balance at Dec. 31, 2016		$ 387,623
Increase (Decrease) in Partners' Capital [Roll Forward]
Changes in co-borrower debt allocation		47,811
Distributions		(16,916)
Net income (loss)	$ 42,220	$ (470)
Ending balance (in units) at Mar. 31, 2017		83,241,396
Ending balance at Mar. 31, 2017		$ 418,048
Beginning balance (in units) at Dec. 31, 2017		80,565,611
Beginning balance at Dec. 31, 2017		$ 366,282
Increase (Decrease) in Partners' Capital [Roll Forward]
Changes in co-borrower debt allocation		(19,903)
Distributions		(14,952)
Net income (loss)	$ (14,823)	$ (18,234)
Ending balance (in units) at Mar. 31, 2018	3,223,000	80,565,611
Ending balance at Mar. 31, 2018		$ 313,193