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Revenues (Tables) | 6 Months Ended
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Aug. 31, 2019
Revenues [Abstract] |
Disaggregation of Revenue [Table Text Block] | Disaggregated Revenue The following table presents disaggregated revenue by customer industry (in thousands):
|  | Three Months Ended August 31, |  | Six Months Ended August 31,
|  | 2019 |  | 2018 |  | 2019 |  | 2018
Net sales: |  |  |  |  |  |  |  |
Industrial - oil and gas, construction, and general |  | $ | 139,352 |  |  | $ | 120,305 |  |  | $ | 304,152 |  |  | $ | 271,613 |
Transmission and distribution |  | 56,686 |  |  | 60,152 |  |  | 128,967 |  |  | 126,106 |
Power generation |  | 40,152 |  |  | 42,330 |  |  | 92,194 |  |  | 87,304 |
Total net sales |  | $ | 236,190 |  |  | $ | 222,787 |  |  | $ | 525,313 |  |  | $ | 485,023 |
Contract with Customer, Asset and Liability [Table Text Block] | Contract Liabilities The following table shows the changes in contract liabilities for the six months ended August 31, 2019 and 2018, respectively (in thousands):
|  | August 31, 2019 |  | August 31, 2018
Balance at beginning of period |  | $ | 56,928 |  |  | $ | 22,698 |
Contract liabilities added during the period |  | 18,234 |  |  | 21,166 |
Revenue recognized during the period |  | (51,504 | ) |  | (20,101 | )
Balance at end of period |  | $ | 23,658 |  |  | $ | 23,763 |

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- Definition Tabular disclosure of contract balances and changes in contract balances. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130551-203045 + Details
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- Definition Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130545-203045 + Details
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