Property and Equipment, Net - Components of Property and Equipment, Net (Detail) - USD ($) $ in Thousands |
Apr. 30, 2018 |
Jan. 31, 2018 |
| Property, Plant and Equipment [Line Items] |
|
|
|
| Property and equipment, gross |
$ 65,382
|
$ 65,121
|
|
| Less accumulated depreciation |
(13,882)
|
(12,837)
|
|
| Total property and equipment, net |
51,500
|
52,284
|
[1] |
| Land [Member] |
|
|
|
| Property, Plant and Equipment [Line Items] |
|
|
|
| Property and equipment, gross |
3,040
|
3,040
|
|
| Building [Member] |
|
|
|
| Property, Plant and Equipment [Line Items] |
|
|
|
| Property and equipment, gross |
20,984
|
20,984
|
|
| Land improvements and building improvements [Member] |
|
|
|
| Property, Plant and Equipment [Line Items] |
|
|
|
| Property and equipment, gross |
20,166
|
20,073
|
|
| Equipment and computers [Member] |
|
|
|
| Property, Plant and Equipment [Line Items] |
|
|
|
| Property and equipment, gross |
7,912
|
7,732
|
|
| Furniture and fixtures [Member] |
|
|
|
| Property, Plant and Equipment [Line Items] |
|
|
|
| Property and equipment, gross |
9,560
|
9,619
|
|
| Leasehold improvements [Member] |
|
|
|
| Property, Plant and Equipment [Line Items] |
|
|
|
| Property and equipment, gross |
3,705
|
3,637
|
|
| Construction in progress [Member] |
|
|
|
| Property, Plant and Equipment [Line Items] |
|
|
|
| Property and equipment, gross |
$ 15
|
$ 36
|
|
|
|