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SECURITIES SOLD UNDER AGREEMENTS TO REPURCHASE - Securities Sold Under Agreements to Repurchase (Parenthetical) (Detail) - USD ($) $ in Thousands | Sep. 30, 2018 | Dec. 31, 2017
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Assets Sold under Agreements to Repurchase [Line Items] |  |
Securities sold under agreements to repurchase | $ 100,000 | $ 300,000
Callable repurchase agreements |  |
Assets Sold under Agreements to Repurchase [Line Items] |  |
Assets sold under agreements to repurchase interest rate | 1.96% |
Securities sold under agreements to repurchase | $ 100,000 |
short term debt [member] |  |
Assets Sold under Agreements to Repurchase [Line Items] |  |
Securities sold under agreements to repurchase | 0 | 100,000
long term debt [member] |  |
Assets Sold under Agreements to Repurchase [Line Items] |  |
Securities sold under agreements to repurchase | $ 100,000 | $ 200,000
Minimum [Member] | long term debt [member] |  |
Assets Sold under Agreements to Repurchase [Line Items] |  |
Assets sold under agreements to repurchase interest rate |  | 0.0196%
Weighted Average [Member] | short term debt [member] |  |
Assets Sold under Agreements to Repurchase [Line Items] |  |
Assets sold under agreements to repurchase interest rate |  | 1.53%
Weighted Average [Member] | long term debt [member] |  |
Assets Sold under Agreements to Repurchase [Line Items] |  |
Assets sold under agreements to repurchase interest rate | 2.26% |
Maximum [Member] | long term debt [member] |  |
Assets Sold under Agreements to Repurchase [Line Items] |  |
Assets sold under agreements to repurchase interest rate |  | 2.26%

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- Definition Interest rate on the amount to be repaid to the counterparty to the repurchase agreement when the carrying amount (or market value, if higher than the carrying amount) of securities or other assets sold under the repurchase agreement exceeds 10 percent of total assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(m)(1)(i)(A)(ii)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
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- Definition 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. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=99393222&loc=SL20226008-175313 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=49176635&loc=d3e9760-107771 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.13(1)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(m)(1)(a)(i)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
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