CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN PARTNERS' CAPITAL (Unaudited) Statement - USD ($) $ in Thousands	Total	LCIF [Member]
Beginning balance (in units) at Dec. 31, 2015		83,241,396
Beginning balance at Dec. 31, 2015		$ 461,657
Increase (Decrease) in Partners' Capital [Roll Forward]
Changes in co-borrower debt allocation		1,532
Distributions		(16,493)
Net income	$ 50,453	$ 18,027
Ending balance (in units) at Mar. 31, 2016		83,241,396
Ending balance at Mar. 31, 2016		$ 464,723
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	$ 42,220	$ (470)
Ending balance (in units) at Mar. 31, 2017	3,350,000	83,241,396
Ending balance at Mar. 31, 2017		$ 418,048