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Goodwill and Other Intangible Assets - Carrying Amount and Accumulated Amortization of Intangible Assets (Detail) (USD $) In Thousands, unless otherwise specified | 6 Months Ended | 12 Months Ended
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Aug. 31, 2014 | Feb. 28, 2014
Finite-Lived Intangible Assets [Line Items] |  |
Weighted Average Remaining Life (in years) | 6 years 8 months 12 days | 7 years 1 month 6 days
Gross Carrying Amount | $ 73,764 | $ 72,214
Accumulated Amortization | 26,173 | 23,337
Amortized intangible assets, Net | 47,591 | 48,877
Trade names [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Weighted Average Remaining Life (in years) |  |
Gross Carrying Amount | 1,234 | 1,234
Accumulated Amortization | 1,234 | 1,234
Amortized intangible assets, Net |  |
Customer lists [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Weighted Average Remaining Life (in years) | 6 years 8 months 12 days | 7 years 1 month 6 days
Gross Carrying Amount | 71,757 | 70,207
Accumulated Amortization | 24,612 | 21,840
Amortized intangible assets, Net | 47,145 | 48,367
Patent [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Weighted Average Remaining Life (in years) | 3 years 6 months | 4 years
Gross Carrying Amount | 773 | 773
Accumulated Amortization | 327 | 263
Amortized intangible assets, Net | $ 446 | $ 510

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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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- Definition Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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- Details
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- Definition Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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- Definition Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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