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Long-Term Debt (Schedule of debt) (detail) (USD $) In Thousands, unless otherwise specified | 12 Months Ended |
--- | --- | ---
Mar. 31, 2014 | Mar. 31, 2013
Debt Instrument [Line Items] |  |
Long-term Debt | $ 218,516 | $ 270,186
Total | 218,516 | 270,186
Current Portion of Long-Term Debt | 2,277 | 40,170
Long-Term Debt, Less Current Portion | 216,239 | 230,016
Revolving credit facility [Member] |  |
Debt Instrument [Line Items] |  |
Long-term Debt | 175,000 | 188,000
Long-term Debt, Weighted Average Interest Rate | 1.65% | 1.70%
Debt Instrument, Maturity Date | 2017 |
Total | 175,000 | 188,000
Secured Note Payable to Insurance Company [Member} |  |
Debt Instrument [Line Items] |  |
Long-term Debt |  | 38,138
Long-term Debt, Weighted Average Interest Rate |  | 8.03%
Debt Instrument, Maturity Date | 2014 |
Total |  | 38,138
Secured Industrial Revenue Development Bonds [Member] |  |
Debt Instrument [Line Items] |  |
Long-term Debt | 22,630 | 22,630
Long-term Debt, Weighted Average Interest Rate | 3.23% | 3.29%
Debt Instrument, Maturity Date | 2029 |
Total | 22,630 | 22,630
Secured Industrial Revenue Development Bond [Member] |  |
Debt Instrument [Line Items] |  |
Long-term Debt | 1,500 |
Long-term Debt, Weighted Average Interest Rate | 2.00% |
Debt Instrument, Maturity Date | 2021 |
Total | 1,500 |
Secured promissory note 1 [Member] |  |
Debt Instrument [Line Items] |  |
Long-term Debt | 15,313 | 16,753
Long-term Debt, Weighted Average Interest Rate | 6.98% | 6.98%
Debt Instrument, Maturity Date | 2022 |
Total | 15,313 | 16,753
Secured promissory note 2 [Member] |  |
Debt Instrument [Line Items] |  |
Long-term Debt | 3,731 | 4,303
Long-term Debt, Weighted Average Interest Rate | 6.35% | 6.35%
Debt Instrument, Maturity Date | 2020 |
Total | 3,731 | 4,303
Other [Member] |  |
Debt Instrument [Line Items] |  |
Long-term Debt | 342 | 362
Total | $ 342 | $ 362

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- Definition Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. 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 SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 16 -Article 7 Reference 2: 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) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.16) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 16 -Article 9 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 20, 22 -Article 5 + Details
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- Definition Carrying amount of long-term debt, net of unamortized discount or premium, scheduled 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. + 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 210.5-02.19,20) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 20 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19 -Article 5 + Details
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- Definition Disclosure of timing of required repayments, sinking fund requirements, and other redeemable securities at fixed or determinable prices and dates in the five years immediately following the date of the latest balance sheet presented in the financial statements, and the amount thereafter to fully repay the principal of long-term debt. These disclosures may be made either on an individual debt or security basis, by type of debt or security basis, or on a combined basis. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21475-112644 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 129 -Paragraph 4 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6802200&loc=d3e1835-112601 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 47 -Paragraph 10 -Subparagraph b -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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- Definition Carrying amount of long-term debt, net of unamortized discount or premium, excluding amounts to be repaid within one year or the normal operating cycle, if longer (current maturities). 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 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 + Details
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