Borrowed Funds - Scheduled Securities Sold Under Repurchase Agreements (Detail) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Debt Instrument [Line Items]
Total securities sold under repurchase agreements	$ 121,322	$ 143,179
Securities Sold Under Repurchase Agreements [Member]
Debt Instrument [Line Items]
Due in one year or less	121,322
Thereafter	0
Total securities sold under repurchase agreements	$ 121,322

Long-term Debt, Maturities, Repayments of Principal after Year Three

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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

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

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-Publisher FASB
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-SubTopic 10
-Section S99
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Amount, after the effects of master netting arrangements, of funds outstanding borrowed in the form of a security repurchase agreement between the entity and another party for the sale and repurchase of identical or substantially the same securities at a date certain for a specified price. Includes liabilities not subject to a master netting arrangement and not elected to be offset.

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