Stockholder's Equity - Changes in Accumulated Other Comprehensive Loss (Detail) $ in Thousands	3 Months Ended
	Mar. 31, 2017 USD ($)
Accumulated Other Comprehensive Income Loss [Line Items]
Balance at December 31, 2016	$ 151,067
Amounts reclassified from accumulated other comprehensive loss	257
Net current period other comprehensive loss	257
Balance at March 31, 2017	126,500
Unrealized Gains and Losses on Cash Flow Hedges [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Balance at December 31, 2016	(350)
Amounts reclassified from accumulated other comprehensive loss	257
Net current period other comprehensive loss	257
Balance at March 31, 2017	(93)
Accumulated Other Comprehensive Income [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Balance at December 31, 2016	(350)
Balance at March 31, 2017	$ (93)