Derivative Instruments and Hedging Activities - Schedule of Changes in Accumulated Other Comprehensive (Loss) Income, Net of Tax (Detail) $ in Thousands	9 Months Ended
Sep. 30, 2019 USD ($)
Accumulated other comprehensive (loss) income:
Beginning Balance	$ 265,194
Ending Balance	231,703
Accumulated Other Comprehensive Income [Member]
Accumulated other comprehensive (loss) income:
Beginning Balance	2,284
Ending Balance	(2,272)
Gains (Losses) on Cash Flow Hedges [Member]
Accumulated other comprehensive (loss) income:
Other comprehensive loss before reclassifications	(3,911)
Amounts reclassified from accumulated other comprehensive (loss) income to interest expense	(645)
Unrealized loss on derivatives, net of tax	$ (4,556)

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Amount after tax, before reclassification adjustments of other comprehensive income (loss).

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Amount after tax and reclassification adjustments of other comprehensive income (loss).

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Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.

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