Organization and Basis of Presentation - Schedule of Adjustments to Consolidated Statements of Operations (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Income (loss) from operations before income taxes	$ 28,751	$ 19,390
Consolidated net income (loss)	22,092	14,550	$ 128,008
Net income (loss) attributable to noncontrolling interest in subsidiaries	3,877	2,045
Net income (loss) available to common stockholders	$ 18,215	$ 12,505
Basic earnings (loss) per share	$ 0.06	$ 0.05
Diluted earnings (loss) per share	$ 0.06	$ 0.05
As Previously Reported [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Income (loss) from operations before income taxes		$ 21,131
Consolidated net income (loss)		16,291
Net income (loss) attributable to noncontrolling interest in subsidiaries		2,632
Net income (loss) available to common stockholders		$ 13,659
Basic earnings (loss) per share		$ 0.05
Diluted earnings (loss) per share		$ 0.05
Retrospective Adjustments [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Income (loss) from operations before income taxes		$ (1,741)
Consolidated net income (loss)		(1,741)
Net income (loss) attributable to noncontrolling interest in subsidiaries		(587)
Net income (loss) available to common stockholders		$ (1,154)