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DERIVATIVE INSTRUMENTS - Amount and Market Value of Mortgage Banking Derivatives (Detail) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
Derivatives, Fair Value [Line Items]
Loss on interest rate swaps	$ 9,600	$ 9,583	$ 0
Notional Amount Assets	131,330	131,330		$ 103,812
Derivatives asset, fair values	4,149	4,149		1,534
Notional Amount Liability	674,723	674,723		103,812
Derivatives liability, fair values	14,055	14,055		1,600
Interest rate swaps and caps on loans
Derivatives, Fair Value [Line Items]
Notional Amount Assets	130,121	130,121		103,812
Derivatives asset, fair values	4,119	4,119		1,534
Notional Amount Liability	673,514	673,514		103,812
Derivatives liability, fair values	14,041	14,041		1,600
Foreign exchange contracts
Derivatives, Fair Value [Line Items]
Notional Amount Assets	1,209	1,209		0
Derivatives asset, fair values	30	30		0
Notional Amount Liability	1,209	1,209		0
Derivatives liability, fair values	$ 14	$ 14		$ 0

X

- Definition

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

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The net change in the difference between the fair value and the carrying value, or in the comparative fair values, of derivative instruments, including options, swaps, futures, and forward contracts, held at each balance sheet date, that was included in earnings for the period.

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