COMMITMENTS - General Information (Details) $ in Millions |
12 Months Ended | ||
---|---|---|---|
Jan. 31, 2018
USD ($)
item
|
Jan. 31, 2017
USD ($)
|
Jan. 31, 2016
USD ($)
|
|
Commitments | |||
The number of option terms remaining | item | 1 | ||
The period of the option terms | 2 years | ||
Costs of Revenues | |||
Commitments | |||
Rent incurred on construction projects included in the costs of revenues | $ 20.3 | $ 13.2 | $ 15.0 |
Selling, General and Administrative Expenses | |||
Commitments | |||
Rent expense included in selling, general and administrative expenses of continuing operations | 0.7 | $ 0.6 | $ 0.3 |
TRC | |||
Commitments | |||
Annual lease amount for primary offices and plant | 0.3 | ||
APC | |||
Commitments | |||
Annual lease amount for primary offices and plant | $ 0.1 |