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LONG-TERM DEBT LONG-TERM DEBT (Narrative) (Details) - USD ($) | Jan. 02, 2022 | Apr. 06, 2020 | Mar. 31, 2018 | Mar. 31, 2017
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Disclosure of detailed information about borrowings [line items] |  |  |  |
Undrawn borrowing facilities | $ 60,000,000 |  |  |
Upfront amendment costs | 3,900,000 |  |  |
Revolving long-term bank credit facility, interest at variable U.S. LIBOR-based interest rate plus a spread ranging from 1% to 2% |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |
Maximum borrowing capacity | $ 1,000,000,000 |  |  | $ 1,000,000,000
Term Loan, Interest At Variable U.S. LIBOR-based Interest Rate Plus A Spread Ranging From 1% to 3% Due April 2025 |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |
Maximum borrowing capacity |  |  | $ 300,000,000 |
Term loan, interest at variable U.S. LIBOR-based interest rate plus a spread ranging from 1% to 3% Due April 2022 |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |
Maximum borrowing capacity |  | $ 400,000,000 |  |

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- Details
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