LONG-TERM DEBT LONG-TERM DEBT - 2017 CREDIT AGREEMENT - SUMMARY (Details) - USD ($) |
Jun. 29, 2017 |
Jun. 18, 2014 |
Apr. 30, 2018 |
Jan. 31, 2018 |
|---|---|---|---|---|
| 2017 Credit Agreement | ||||
| Debt Instrument | ||||
| Line of Credit Facility, Maximum Borrowing Capacity | $ 725,000,000 | |||
| 2017 Term Loan | ||||
| Debt Instrument | ||||
| Long-term Debt, Gross | $ 425,000,000 | 421,813,000 | $ 422,875,000 | |
| Unamortized Debt Discount | 500,000 | |||
| 2017 Revolving Credit Facility | ||||
| Debt Instrument | ||||
| Line of Credit Facility, Maximum Borrowing Capacity | $ 300,000,000 | |||
| 2014 Term Loans | ||||
| Debt Instrument | ||||
| Proceeds from (Repayments of) Secured Debt | $ 406,900,000 | $ 530,000,000 |