Derivatives - Fair Value of Derivative Contracts (Detail) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative contract, Assets	$ 106,656	$ 72,926
Derivative contract, Liabilities	77,909	25,661
Derivative contract, Notional Amounts	1,930,754	3,271,250
Forward Contracts
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative contract, Assets	229	14,389
Derivative contract, Liabilities	77,909	13,537
Derivative contract, Notional Amounts	1,183,298	1,606,943
Nasdaq Forwards
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative contract, Assets	47,675	26,502
Derivative contract, Liabilities	0	0
Derivative contract, Notional Amounts	267,480	267,480
Rate lock commitments
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative contract, Assets	58,752	32,035
Derivative contract, Liabilities	0	12,124
Derivative contract, Notional Amounts	$ 479,976	$ 1,396,827

Nominal or face amount used to calculate payments on the derivative asset.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1A
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5579245-113959

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1B
-URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5580258-113959

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1A
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5579245-113959

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Fair value as of the balance sheet date of derivative instrument not designated as hedging instrument and classified as an asset.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4B
-Subparagraph (c)(2)
-URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5624163-113959

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- Definition

Fair value as of the balance sheet date of derivative instrument not designated as hedging instrument and classified as a liability.

+ References

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+ References

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