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		43,239
Distributions		(33,832)
Net income (loss)	$ 49,585	$ (478)
Ending balance (in units) at Jun. 30, 2017		83,241,396
Ending balance at Jun. 30, 2017		$ 396,552
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		(11,816)
Distributions		(29,906)
Net income (loss)	$ (15,618)	$ (1,948)
Ending balance (in units) at Jun. 30, 2018	3,206,000	80,565,611
Ending balance at Jun. 30, 2018		$ 322,612