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		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Total gross revenues	$ 97,689	$ 105,981	$ 289,472	$ 334,170
Net income (loss)	5,596	(27,612)	55,181	79,521
Net income (loss) attributable to common shareholders	$ 3,916	$ (26,975)	$ 49,832	$ 74,718
Net income (loss) attributable to common shares outstanding - basic (in dollars per share)	$ 0.02	$ (0.12)	$ 0.21	$ 0.32
Net income (loss) attributable to common shareholders - per common share diluted (in dollars per share)	$ 0.02	$ (0.12)	$ 0.21	$ 0.31
Scenario, Previously Reported [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Total gross revenues		$ 106,331		$ 327,524
Net income (loss)		(27,262)		72,875
Net income (loss) attributable to common shareholders		$ (26,653)		$ 68,310
Net income (loss) attributable to common shares outstanding - basic (in dollars per share)		$ (0.11)		$ 0.29
Net income (loss) attributable to common shareholders - per common share diluted (in dollars per share)		$ (0.11)		$ 0.28
Restatement Adjustment [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Total gross revenues		$ (350)		$ 6,646
Net income (loss)		(350)		6,646
Net income (loss) attributable to common shareholders		$ (322)		$ 6,408
Net income (loss) attributable to common shares outstanding - basic (in dollars per share)		$ (0.01)		$ 0.03
Net income (loss) attributable to common shareholders - per common share diluted (in dollars per share)		$ (0.01)		$ 0.03
LCIF [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Total gross revenues	$ 21,242	$ 30,558	$ 61,169	$ 105,430
Net income (loss)	$ (4,422)	$ (61,579)	$ (4,900)	$ (20,798)
Net loss per unit (in dollars per unit)		$ (0.74)		$ (0.25)
LCIF [Member] | Scenario, Previously Reported [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Total gross revenues		$ 30,908		$ 98,784
Net income (loss)		$ (60,901)		$ (26,652)
Net loss per unit (in dollars per unit)		$ (0.73)		$ (0.32)
LCIF [Member] | Restatement Adjustment [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Total gross revenues		$ (350)		$ 6,646
Net income (loss)		$ (678)		$ 5,854
Net loss per unit (in dollars per unit)		$ (0.01)		$ 0.07