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Revenues (Tables) | 3 Months Ended
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May 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 May 31,
|  | 2019 |  | 2018
Net sales: |  |  |  |
Industrial - oil and gas, construction, and general |  | $ | 164,800 |  |  | $ | 151,308 |
Transmission and distribution |  | 72,281 |  |  | 65,954 |
Power generation |  | 52,042 |  |  | 44,974 |
Total net sales |  | $ | 289,123 |  |  | $ | 262,236 |
Contract with Customer, Asset and Liability [Table Text Block] | Contract Liabilities The following table shows the changes in contract liabilities for the three months ended May 31, 2019 and 2018, respectively (in thousands):
|  | May 31, 2019 |  | May 31, 2018
Balance at beginning of period |  | $ | 56,928 |  |  | $ | 22,698 |
Contract liabilities added during the period |  | 10,970 |  |  | 16,441 |
Revenue recognized during the period |  | (45,579 | ) |  | (17,301 | )
Balance at end of period |  | $ | 22,319 |  |  | $ | 21,838 |

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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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