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Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
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Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
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-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

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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.

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No definition available.

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Amount of the required periodic payments including both interest and principal payments.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(16))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

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-Name Accounting Standards Codification
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-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

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-Name Accounting Standards Codification
-Topic 210
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-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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Amount after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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The remaining balance of debt issuance expenses that were capitalized and are being amortized against income over the lives of the respective bond issues. This does not include the amounts capitalized as part of the cost of the utility plant or asset.

+ References

+ Details

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Long-term Debt - Schedule of Long-term Debt (Details) - USD ($)		12 Months Ended
	Mar. 31, 2008	Feb. 29, 2016	Feb. 28, 2018	Feb. 28, 2017
Debt Instrument [Line Items]
Total			$ 300,895,000	$ 271,429,000
Debt, Current		$ 16,629,000	14,286,000	16,629,000
Total			301,286,000	272,290,000
Unamortized Debt Issuance Expense			(391,000)	(861,000)
Long-term debt, exculding current maturities		254,800,000	286,609,000	254,800,000
Senior Notes [Member] \| Unsecured Senior Notes Due January 2021 [Member]
Debt Instrument [Line Items]
Total			125,000,000	125,000,000
Senior Notes [Member] \| Unsecured Senior Notes Due March 2012 through March 2018 [Member]
Debt Instrument [Line Items]
Total			14,286,000	28,571,000
Annual installments	$ 14,300,000	$ 14,285,714
Medium-term Notes [Member]
Debt Instrument [Line Items]
Total			0	49,219,000
Line of Credit [Member] \| Line of Credit [Member]
Debt Instrument [Line Items]
Total			$ 162,000,000	$ 69,500,000