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Represent the discount percentage used for evaluating collateral pledged for financing transactions.

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Weighted average maturity of residential mortgages receivable, in 'PnYnMnDnTnHnMnS' format.

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Amount of recovery of loans and lease receivables which had previously been fully or partially written-off as bad debts.

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Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

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Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

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The stated interest rate on the mortgage loan receivable or the weighted average interest rate on a group of loans.

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Carrying amount of other real estate not separately disclosed, including, but not limited to, real estate investments, real estate loans that qualify as investments in real estate, and premises that are no longer used in operations may also be included in real estate owned. This does not include real estate assets taken in settlement of troubled loans through surrender or foreclosure.

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Amount of expense related to estimated loss from loan and lease transactions.

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For each period for which an income statement is required, disclosure of the changes in the allowance, including balances at end of period.

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Fair value of an asset representing net future revenue from contractually specified servicing fees, late charges, and other ancillary revenues, in excess of future costs related to servicing arrangements.

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Discount rate used to estimate the fair value of servicing assets and servicing liabilities.

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Description of qualitative information about the assumptions used to estimate fair value for servicing assets and servicing liabilities.

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FAIR VALUES OF FINANCIAL INSTRUMENTS (Additional Information) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
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.
Mortgage servicing rights	$ 4,100,000
Weighted average interest rate, residential mortgages (in hundredths)	3.81%
Weighted average maturity of residential mortgages	19 years
Prepayment Speed used in unobservable assumptions	123	162
Discount rate used to estimate fair value (in hundredths)	9.40%	9.30%
Subtotal	$ 3,819,525,000	$ 3,471,668,000
Valuation allowance	47,121,000	43,718,000	$ 43,610,000	$ 46,262,000
Recoveries	1,963,000	1,013,000	521,000
Provision For Loan and Lease Losses	3,000,000	1,150,000	$ 0
Ten Percent Adverse Changes In Psa [Member]
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.
Mortgage servicing rights	114,000
Twenty Percent Adverse Changes In Psa [Member]
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.
Mortgage servicing rights	218,000
Ten Percent Adverse Changes In Discount Rate [Member]
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.
Mortgage servicing rights	152,000
Twenty Percent Adverse Changes In Discount Rate [Member]
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.
Mortgage servicing rights	$ 294,000
Commercial Real Estates [Member] \| Minimum [Member] \| Fair Value, Inputs, Level 3 [Member]
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.
Percentage of discount from appraised value (in hundredths)	0.00%
Commercial Real Estates [Member] \| Maximum [Member] \| Fair Value, Inputs, Level 3 [Member]
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.
Percentage of discount from appraised value (in hundredths)	50.00%
Inventory Finished Goods [Member] \| Minimum [Member] \| Fair Value, Inputs, Level 3 [Member]
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.
Percentage of discount from appraised value (in hundredths)	35.00%
Inventory Finished Goods [Member] \| Maximum [Member] \| Fair Value, Inputs, Level 3 [Member]
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.
Percentage of discount from appraised value (in hundredths)	65.00%
Finished Goods [Member] \| Minimum [Member] \| Fair Value, Inputs, Level 3 [Member]
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.
Percentage of discount from appraised value (in hundredths)	30.00%
Finished Goods [Member] \| Maximum [Member] \| Fair Value, Inputs, Level 3 [Member]
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.
Percentage of discount from appraised value (in hundredths)	60.00%
Inventory Work In Process [Member] \| Minimum [Member] \| Fair Value, Inputs, Level 3 [Member]
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.
Percentage of discount from appraised value (in hundredths)	50.00%
Inventory Work In Process [Member] \| Maximum [Member] \| Fair Value, Inputs, Level 3 [Member]
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.
Percentage of discount from appraised value (in hundredths)	100.00%
Equipment [Member] \| Minimum [Member] \| Fair Value, Inputs, Level 3 [Member]
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.
Percentage of discount from appraised value (in hundredths)	30.00%
Equipment [Member] \| Maximum [Member] \| Fair Value, Inputs, Level 3 [Member]
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.
Percentage of discount from appraised value (in hundredths)	70.00%
Marketable Securities [Member] \| Minimum [Member] \| Fair Value, Inputs, Level 3 [Member]
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.
Percentage of discount from appraised value (in hundredths)	10.00%
Marketable Securities [Member] \| Maximum [Member] \| Fair Value, Inputs, Level 3 [Member]
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.
Percentage of discount from appraised value (in hundredths)	30.00%
Impaired Loans [Member]
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.
Subtotal	$ 6,800,000	8,900,000
Valuation allowance	2,400,000	3,100,000
Recoveries		$ 700,000
Provision For Loan and Lease Losses	700,000
Other Real Estate Owned [Member]
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.
Other Real Estate	147,000
Real Estate Owned, Valuation Allowance	72,000
Impaired Loans Fair Value Disclosure	$ 75,000