Property, Plant and Equipment (Details) - USD ($)
$ in Thousands |
12 Months Ended |
Feb. 29, 2016 |
Feb. 28, 2015 |
Feb. 28, 2014 |
| Property, Plant and Equipment [Line Items] |
|
|
|
| Depreciation |
$ 31,200
|
$ 28,100
|
$ 25,100
|
| Property, Plant and Equipment, Gross |
416,701
|
359,724
|
|
| Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment |
(190,368)
|
(163,141)
|
|
| Property, plant, and equipment, net |
226,333
|
196,583
|
$ 197,639
|
| Land [Member] |
|
|
|
| Property, Plant and Equipment [Line Items] |
|
|
|
| Property, Plant and Equipment, Gross |
21,265
|
16,004
|
|
| Building and Building Improvements [Member] |
|
|
|
| Property, Plant and Equipment [Line Items] |
|
|
|
| Property, Plant and Equipment, Gross |
141,370
|
122,539
|
|
| Machinery and Equipment [Member] |
|
|
|
| Property, Plant and Equipment [Line Items] |
|
|
|
| Property, Plant and Equipment, Gross |
215,796
|
184,921
|
|
| Furniture and Fixtures [Member] |
|
|
|
| Property, Plant and Equipment [Line Items] |
|
|
|
| Property, Plant and Equipment, Gross |
22,237
|
21,716
|
|
| Vehicles [Member] |
|
|
|
| Property, Plant and Equipment [Line Items] |
|
|
|
| Property, Plant and Equipment, Gross |
3,206
|
2,351
|
|
| Construction in Progress [Member] |
|
|
|
| Property, Plant and Equipment [Line Items] |
|
|
|
| Property, Plant and Equipment, Gross |
$ 12,827
|
$ 12,193
|
|