Derivative Financial Instruments - Summary of Gain or Loss Recognized in AOCI (Loss) (Detail) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2019	Mar. 31, 2018
Derivatives, Fair Value [Line Items]
Amount of Gain or (Loss) Recognized in AOCI on Derivatives, net of tax	$ 4,926	$ 13,910
Amount of Pre-tax Gain or (Loss) Reclassified from AOCI into Income	836	585
Amount of Pre-tax Gain or (Loss) Recognized in Income on Derivatives	1,684	(744)
Derivative [Member]
Derivatives, Fair Value [Line Items]
Amount of Gain or (Loss) Recognized in AOCI on Derivatives, net of tax	4,926	13,910
Amount of Pre-tax Gain or (Loss) Reclassified from AOCI into Income	836	585
Amount of Pre-tax Gain or (Loss) Recognized in Income on Derivatives	$ 1,684	$ (744)

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
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4D
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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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-Publisher FASB
-Name Accounting Standards Codification
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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).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
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