Fair Value Measurement - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended		12 Months Ended
	Jan. 05, 2015	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Expected volatility rate		50.00%		40.00%
Risk free interest rate		0.85%		0.60%
Expected probability of occurrence		90.00%		90.00%
Mandatory conversion, expected term		6 months		6 months
Net income (loss) attributable to common and participating stockholders		$ 13,289	$ 51,050
Maximum [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Percentage of closing stock price		10.00%
Estimated net income		$ 23,800
Maximum [Member] | Volatility Assumption [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Percentage of closing stock price		10.00%
Maximum [Member] | Transaction Occurring Assumption [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Percentage of closing stock price		10.00%
Estimated net income		$ 11,000
Minimum [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Percentage of closing stock price		10.00%
Estimated net income		$ 26,700
Minimum [Member] | Volatility Assumption [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Percentage of closing stock price		10.00%
Estimated net income		$ 1,700
Estimated net income		$ 1,800
Minimum [Member] | Transaction Occurring Assumption [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Percentage of closing stock price		10.00%
Estimated net income		$ 11,000
Redeemable Convertible Series B Preferred Stock [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Capital	$ 600,000
Redeemable Convertible preferred stock, shares issued	600,000	600,000		600,000
Preferred stock liquidation preference per share	$ 1,000
Preferred stock dividend rate calculated on interest rate	3.00%
Conversion ceiling price of common stock		$ 2.25
Conversion floor price of common stock		1.75
Redeemable Convertible Series B Preferred Stock [Member] | Maximum [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Conversion ceiling price of common stock		$ 2.25