Basis of Presentation - Additional Information (Details)		3 Months Ended
	Jul. 25, 2016	Mar. 31, 2017 USD ($)
Basis Of Presentation [Line Items]
Reverse stock split of common stock	0.74
Accounting Standard Update (“ASU”) No. 2016-09 | Maximum
Basis Of Presentation [Line Items]
Discrete adjustments to income tax expense recognized		$ 100,000