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DEBT (Details) € in Millions, $ in Millions |  |  |  |  | 6 Months Ended |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Jun. 25, 2021 USD ($) | Dec. 21, 2020 USD ($) subsidiary | Jul. 01, 2020 USD ($) | Mar. 22, 2018 USD ($) | Jun. 30, 2021 USD ($) subsidiary | Jul. 01, 2021 EUR (€) | Jun. 30, 2021 EUR (€) subsidiary | Dec. 31, 2020 USD ($) | Dec. 15, 2020 USD ($) | Jul. 01, 2020 EUR (€) | Jan. 12, 2017 USD ($)
Debt Instrument |  |  |  |  |  |  |  |  |  |  |
Repayments of outstanding indebtedness |  |  |  |  | $ 20.0 |  |  |  |  |  |
Proceeds from long-term debt |  |  |  |  | 110.0 |  |  |  |  |  |
Borrowings outstanding |  |  |  |  | $ 1,298.5 |  |  | $ 1,203.9 |  |  |
Term Loan Agreement |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |
Repayments of outstanding indebtedness |  |  |  | $ 300.0 |  |  |  |  |  |  |
Debt instrument face amount |  |  |  | $ 300.0 |  |  |  |  |  |  |
Up-front fee (as percent) |  |  |  | 0.05 |  |  |  |  |  |  |
Indebtedness subsidiaries may incur |  |  |  | $ 250.0 |  |  |  |  |  |  |
Consolidated EBITDA (Percentage) |  |  |  | 35.00% |  |  |  |  |  |  |
Minimum consolidated interest ratio |  |  |  |  | 4.00 |  |  |  |  |  |
Maximum consolidated leverage ratio |  |  |  | 3.50 | 3.50 |  | 3.50 |  |  |  |
Borrowings outstanding |  |  |  |  | $ 159.3 |  |  | $ 68.7 |  |  |
Term Loan Agreement | LIBOR | Minimum |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |
Interest rate margin (as a percent) |  |  |  |  | 1.00% |  |  |  |  |  |
Term Loan Agreement | LIBOR | Maximum |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |
Interest rate margin (as a percent) |  |  |  |  | 1.50% |  |  |  |  |  |
Term Loan Agreement | Prime Rate | Minimum |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |
Interest rate margin (as a percent) |  |  |  |  | 0.00% |  |  |  |  |  |
Term Loan Agreement | Prime Rate | Maximum |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |
Interest rate margin (as a percent) |  |  |  |  | 0.50% |  |  |  |  |  |
Amended term loan agreement |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |
Proceeds from long-term debt | $ 110.0 |  |  |  |  |  |  |  |  |  |
Applicable margin on loans | 0.65 |  |  |  |  |  |  |  |  |  |
Indebtedness subsidiaries may incur | $ 350.0 |  |  |  |  |  |  |  |  |  |
Consolidated EBITDA (Percentage) | 35.00% |  |  |  |  |  |  |  |  |  |
Maximum consolidated leverage ratio | 4.00 |  |  |  |  |  |  |  |  |  |
3.650% Senior Notes |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |
Debt instrument face amount |  |  |  |  | $ 650.0 |  |  |  |  |  | $ 650.0
Interest rate (as a percent) |  |  |  |  | 3.65% |  | 3.65% | 3.65% | 3.65% |  | 3.65%
Redemption price |  |  |  |  | 101.00% |  |  |  |  |  |
Borrowings outstanding |  |  |  |  | $ 646.3 |  |  | $ 645.9 |  |  |
Revolving Credit Agreement |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |
Minimum consolidated interest ratio |  |  |  |  | 4.00 |  |  |  |  |  |
Maximum consolidated leverage ratio |  |  |  |  | 3.50 |  | 3.50 |  |  |  |
Credit facility, maximum borrowing capacity |  | $ 250.0 |  |  | $ 250.0 |  |  |  |  |  |
Term of facility |  | 3 years |  |  |  |  |  |  |  |  |
Maximum borrowing capacity, increase limit |  | $ 100.0 |  |  |  |  |  |  |  |  |
Maximum borrowing capacity, total with increase |  | $ 350.0 |  |  |  |  |  |  |  |  |
Number of subsidiaries designated as additional borrowers | subsidiary |  |  |  |  | 0 |  | 0 |  |  |  |
Borrowings outstanding |  |  |  |  | $ 0.0 |  |  |  |  |  |
Revolving Credit Agreement | Minimum |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |
Number of subsidiaries that may be designated as additional borrowers | subsidiary |  | 1 |  |  |  |  |  |  |  |  |
Revolving Credit Agreement | Maximum |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |
Minimum consolidated interest ratio |  |  |  |  | 4.00 |  |  |  |  |  |
Revolving Credit Agreement | LIBOR | Minimum |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |
Interest rate margin (as a percent) |  |  |  |  | 0.875% |  |  |  |  |  |
Revolving Credit Agreement | LIBOR | Maximum |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |
Interest rate margin (as a percent) |  |  |  |  | 1.50% |  |  |  |  |  |
Revolving Credit Agreement | Prime Rate | Minimum |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |
Interest rate margin (as a percent) |  |  |  |  | 0.00% |  |  |  |  |  |
Revolving Credit Agreement | Prime Rate | Maximum |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |
Interest rate margin (as a percent) |  |  |  |  | 0.50% |  |  |  |  |  |
Revolving Credit Agreement | Line of Credit |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |
Credit facility, maximum borrowing capacity |  | $ 25.0 |  |  |  |  |  |  |  |  |
1.625% Senior Notes |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |
Debt instrument face amount |  |  |  |  | $ 500.0 |  |  |  | $ 500.0 |  |
Interest rate (as a percent) |  |  |  |  | 1.625% |  | 1.625% | 1.625% | 1.625% |  |
Borrowings outstanding |  |  |  |  | $ 492.9 |  |  | $ 489.3 |  |  |
Credit Facility |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |
Debt instrument face amount | € |  |  |  |  |  |  |  |  |  | € 1,500 |
Maximum borrowing capacity, increase limit | € |  |  |  |  |  |  |  |  |  | 500 |
Maximum borrowing capacity, total with increase | € |  |  |  |  |  |  |  |  |  | 2,000 |
Borrowings outstanding | € |  |  |  |  |  |  | € 0 |  |  |  |
Borrowing capacity available | € |  |  |  |  |  |  | € 1,500 |  |  |  |
Debt instrument, threshold amount transferred to provider of settlement or custody services | € |  |  |  |  |  |  |  |  |  | 500 |
Percentage of commitment fee |  |  | 0.30% |  |  |  |  |  |  |  |
Facility payable |  |  | 364 days |  |  |  |  |  |  |  |
Debt instrument, threshold net worth on each drawdown |  |  | $ 1,750.0 |  |  |  |  |  |  |  |
Debt instrument, amount to meet minimum liquidity regulations | € |  |  |  |  |  | € 20 |  |  |  | € 24 |
Credit Facility | Base Rate |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |
Interest rate margin (as a percent) |  |  | 1.75% |  |  |  |  |  |  |  |
Credit Facility | Federal Funds Effective Rate |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |
Interest rate margin (as a percent) |  |  | 0.50% |  |  |  |  |  |  |  |

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