Derivative Instruments and Hedging Activities - Schedule of Changes in Accumulated Other Comprehensive Income (Loss), Net of Tax (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Accumulated other comprehensive (loss) income:
Beginning Balance	$ 265,194	$ 287,466
Ending Balance	210,892	265,194
Accumulated Other Comprehensive (Loss) Income [Member]
Accumulated other comprehensive (loss) income:
Beginning Balance	2,284	(5,076)
Impact of adoption of ASU 2018-02		(1,094)
Ending Balance	(1,559)	2,284
Gains (Losses) on Cash Flow Hedges [Member]
Accumulated other comprehensive (loss) income:
Impact of adoption of ASU 2018-02		(1,094)
Other comprehensive income (loss) before reclassifications	(3,831)	10,426
Amounts reclassified from accumulated other comprehensive (loss) income to interest expense	(12)	(1,972)
Unrealized gain (loss) on derivatives, net of tax	$ (3,843)	$ 8,454