The Company and Financial Statement Presentation - Schedule of Error Corrections and Prior Period Adjustment Restatement (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Total gross revenues	$ 95,684	$ 116,912	$ 191,783	$ 228,189
Net income	7,365	56,680	49,585	107,133
Net income attributable to common shareholders	$ 5,519	$ 53,875	$ 45,916	$ 101,655
Net income attributable to common shares outstanding - basic (in dollars per share)	$ 0.02	$ 0.23	$ 0.19	$ 0.44
Net income attributable to common shareholders - per common share diluted (in dollars per share)	$ 0.02	$ 0.23	$ 0.19	$ 0.43
Scenario, Previously Reported [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Total gross revenues		$ 109,577		$ 221,193
Net income		49,345		100,137
Net income attributable to common shareholders		$ 46,830		$ 94,937
Net income attributable to common shares outstanding - basic (in dollars per share)		$ 0.20		$ 0.41
Net income attributable to common shareholders - per common share diluted (in dollars per share)		$ 0.20		$ 0.41
Restatement Adjustment [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Total gross revenues		$ 7,335		$ 6,996
Net income		7,335		6,996
Net income attributable to common shareholders		$ 7,045		$ 6,718
Net income attributable to common shares outstanding - basic (in dollars per share)		$ 0.03		$ 0.03
Net income attributable to common shareholders - per common share diluted (in dollars per share)		$ 0.03		$ 0.02
LCIF [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Total gross revenues	$ 20,646	$ 40,772	$ 39,927	$ 74,872
Net income	$ (8)	$ 22,754	$ (478)	$ 40,781
Net income (loss) per unit (in dollars per unit)		$ 0.27		$ 0.49
LCIF [Member] | Scenario, Previously Reported [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Total gross revenues		$ 33,437		$ 67,876
Net income		$ 15,907		$ 34,249
Net income (loss) per unit (in dollars per unit)		$ 0.19		$ 0.41
LCIF [Member] | Restatement Adjustment [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Total gross revenues		$ 7,335		$ 6,996
Net income		$ 6,847		$ 6,532
Net income (loss) per unit (in dollars per unit)		$ 0.08		$ 0.08