Derivative Financial Instruments - Summary of Gain or Loss Recognized in AOCI (Detail) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Derivatives, Fair Value [Line Items]
Amount of Gain or (Loss) Recognized in AOCI on Derivatives, net of tax	$ 1,856	$ (17,989)	$ 6,782	$ (4,079)
Amount of Pre-tax Gain or (Loss) Reclassified from AOCI into Income	878	(539)	1,714	46
Amount of Pre-tax Gain or (Loss) Recognized in Income on Derivatives	56	435	1,740	(309)
Derivative [Member]
Derivatives, Fair Value [Line Items]
Amount of Gain or (Loss) Recognized in AOCI on Derivatives, net of tax	1,856	(17,989)	6,782	(4,079)
Amount of Pre-tax Gain or (Loss) Reclassified from AOCI into Income	878	(539)	1,714	46
Amount of Pre-tax Gain or (Loss) Recognized in Income on Derivatives	$ 56	$ 435	$ 1,740	$ (309)

The effective portion of net gain (loss) reclassified from accumulated other comprehensive income into income on derivative instruments designated and qualifying as hedging instruments.

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-Publisher FASB
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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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Aggregate net gain (loss) on all derivative instruments recognized in earnings during the period, before tax effects.

+ References

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Amount after tax of increase (decrease) in accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's increase (decrease) in deferred hedging gain (loss).

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