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SIGNIFICANT ACCOUNTING POLICIES - CAPITAL CONSTRUCTION FUND (Details) - USD ($) $ in Millions | 6 Months Ended |
--- | --- | ---
Jun. 30, 2022 | Jun. 30, 2021 | Dec. 31, 2021
Accounts receivable, net | $ 380.6 |  | $ 343.7
Cash Deposits Into CCF | 10.7 | $ 31.2 |
Withdrawals from CCF | 10.7 | 31.2 |
Eligible Accounts Receivable Assigned to CCF |  |  |
Accounts receivable, net | 9.8 |  | $ 9.8
Cash Deposits Into CCF | 10.7 | 31.2 |
Withdrawals from CCF | $ 10.7 | $ 31.2 |

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