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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Face (par) amount of debt instrument at time of issuance.

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-Publisher FASB
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Contractual interest rate for funds borrowed, under the debt agreement.

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+ References

No definition available.

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LONG TERM DEBT AND CAPITAL LEASES - Tax-Exempt Financings (Details) - USD ($)	Feb. 28, 2017	Dec. 31, 2016	Dec. 31, 2015
Debt Instrument [Line Items]
Aggregate principal amount		$ 525,583,000	$ 525,019,000
New York Bonds, 2016
Debt Instrument [Line Items]
Principal amount		$ 15,000,000
New York State Environmental Facilities Corporation Solid Waste Disposal Revenue Bonds Series 2014R-2 due December 2044 - fixed rate interest period through 2026; bearing interest at 3.125%
Debt Instrument [Line Items]
Debt instrument interest rate		3.125%
Aggregate principal amount		$ 15,000,000	$ 0
New York Bonds, 2014
Debt Instrument [Line Items]
Aggregate principal amount		$ 40,000,000
Debt instrument interest rate		3.75%
Finance Authority of Maine Solid Waste Disposal Revenue Bonds Series 2015 due August 2035 - fixed rate interest period through 2025; bearing interest at 5.125%
Debt Instrument [Line Items]
Debt instrument interest rate		5.125%	5.125%
Aggregate principal amount		$ 15,000,000	$ 15,000,000
Additional bond issued		15,000,000
Fixed Rate Bonds \| Vermont Bonds
Debt Instrument [Line Items]
Aggregate principal amount		$ 16,000,000
Debt instrument interest rate		4.75%
New Hampshire Bonds
Debt Instrument [Line Items]
Aggregate principal amount		$ 11,000,000
Debt instrument interest rate		4.00%
Maine Bonds
Debt Instrument [Line Items]
Debt instrument interest rate		6.25%
Aggregate principal amount		$ 21,400,000
Maine Bonds \| Variable Rate Bonds
Debt Instrument [Line Items]
Aggregate principal amount		$ 3,600,000
Subsequent Event \| Unsecured Debt \| FAME Bonds 2005R-3
Debt Instrument [Line Items]
Debt instrument interest rate	5.25%
Principal amount	$ 25,000