Segments (Details) - USD ($)
$ in Thousands |
3 Months Ended |
|
May 31, 2019 |
May 31, 2018 |
Feb. 28, 2019 |
| Segment Reporting Information [Line Items] |
|
|
|
| Property, Plant and Equipment, Net |
$ 206,305
|
|
$ 210,227
|
| Operations and assets by segment |
|
|
|
| Operating Income |
30,974
|
$ 23,696
|
|
| Assets |
1,135,679
|
|
1,088,570
|
| Revenues |
289,123
|
262,236
|
|
| Energy |
|
|
|
| Operations and assets by segment |
|
|
|
| Operating Income |
12,571
|
9,958
|
|
| Assets |
629,157
|
|
630,134
|
| Revenues |
166,969
|
146,986
|
|
| Metal Coatings |
|
|
|
| Operations and assets by segment |
|
|
|
| Operating Income |
29,392
|
25,184
|
|
| Assets |
487,922
|
|
440,090
|
| Revenues |
122,154
|
115,250
|
|
| Corporate |
|
|
|
| Operations and assets by segment |
|
|
|
| Operating Income |
(10,989)
|
(11,446)
|
|
| Corporate |
|
|
|
| Operations and assets by segment |
|
|
|
| Assets |
18,600
|
|
18,346
|
| UNITED STATES |
|
|
|
| Segment Reporting Information [Line Items] |
|
|
|
| Property, Plant and Equipment, Net |
185,294
|
|
189,281
|
| Operations and assets by segment |
|
|
|
| Revenues |
230,337
|
213,606
|
|
| CANADA |
|
|
|
| Segment Reporting Information [Line Items] |
|
|
|
| Property, Plant and Equipment, Net |
17,033
|
|
16,961
|
| Other Countries [Member] |
|
|
|
| Segment Reporting Information [Line Items] |
|
|
|
| Property, Plant and Equipment, Net |
3,978
|
|
$ 3,985
|
| International [Member] |
|
|
|
| Operations and assets by segment |
|
|
|
| Revenues |
$ 58,786
|
$ 48,630
|
|