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v3.20.4

Debt - Other (Details) $ in Millions |  |  |  |  | 12 Months Ended |  |
--- | --- | --- | --- | --- | --- | --- | ---
Sep. 03, 2020 USD ($) | Aug. 03, 2020 USD ($) | Apr. 12, 2013 USD ($) | Nov. 20, 2006 USD ($) | Dec. 31, 2020 USD ($) item | Sep. 02, 2020 USD ($) | Dec. 31, 2019 USD ($)
Debt |  |  |  |  |  |  |
Total |  |  |  |  | $ 1,663.7 |  | $ 1,596.3
Number of financial covenants | item |  |  |  |  | 2 |  |
Aggregate maturities of long-term debt for each of the next five years and thereafter |  |  |  |  |  |  |
2021 |  |  |  |  | $ 6.0 |  |
2022 |  |  |  |  | 0.3 |  |
2023 |  |  |  |  | 506.0 |  |
2024 |  |  |  |  | 0.3 |  |
2025 |  |  |  |  | 400.3 |  |
Thereafter |  |  |  |  | 750.8 |  |
Total |  |  |  |  | 1,663.7 |  | 1,596.3
Unsecured revolving credit facility maturing September 2, 2025 |  |  |  |  |  |  |
Debt |  |  |  |  |  |  |
Maximum borrowing capacity | $ 1,500.0 |  |  |  |  | $ 1,500.0 |
Debt term | 5 years |  |  |  |  |  |
Total |  |  |  |  | $ 0.0 |  | $ 368.0
Commitment fee on unused portion of revolving credit facility (as a percent) |  |  |  |  | 0.20% |  |
Weighted average fixed interest rate (as a percent) |  |  |  |  |  |  | 3.69%
Letters of credit outstanding |  |  |  |  | $ 36.3 |  |
Available on the revolving credit facility |  |  |  |  | 1,460.0 |  |
Aggregate maturities of long-term debt for each of the next five years and thereafter |  |  |  |  |  |  |
Total |  |  |  |  | $ 0.0 |  | $ 368.0
Unsecured revolving credit facility maturing September 2, 2025 | LIBOR |  |  |  |  |  |  |
Debt |  |  |  |  |  |  |
Variable interest rate |  |  |  |  | LIBOR |  |
Interest rate added to base (as a percent) |  |  |  |  | 1.25% |  |
Unsecured revolving credit facility maturing September 2, 2025 | Bank prime rate |  |  |  |  |  |  |
Debt |  |  |  |  |  |  |
Variable interest rate |  |  |  |  | bank prime rate |  |
Interest rate added to base (as a percent) |  |  |  |  | 0.25% |  |
Unsecured term loan repaid August 3, 2020 |  |  |  |  |  |  |
Debt |  |  |  |  |  |  |
Total |  | $ 0.0 |  |  |  |  | $ 465.0
Weighted average fixed interest rate (as a percent) |  |  |  |  |  |  | 2.80%
Aggregate maturities of long-term debt for each of the next five years and thereafter |  |  |  |  |  |  |
Total |  | 0.0 |  |  |  |  | $ 465.0
Senior Unsecured Notes |  |  |  |  |  |  |
Debt |  |  |  |  |  |  |
Percentage of principal amount at which the notes may be required to be repurchased in event of a change of control and a downgrade of the entity's credit rating |  |  |  |  | 101.00% |  |
Senior unsecured notes issued November 20, 2006 |  |  |  |  |  |  |
Debt |  |  |  |  |  |  |
Issuance of debt |  |  |  | $ 600.0 |  |  |
Senior unsecured notes due November 15, 2016 |  |  |  |  |  |  |
Debt |  |  |  |  |  |  |
Interest rate (as a percent) |  |  |  | 6.20% |  |  |
Issuance of debt |  |  |  | $ 350.0 |  |  |
Senior unsecured notes issued August 3, 2020 |  |  |  |  |  |  |
Debt |  |  |  |  |  |  |
Issuance of debt |  | $ 900.0 |  |  |  |  |
Senior unsecured notes due August 15, 2025 |  |  |  |  |  |  |
Debt |  |  |  |  |  |  |
Interest rate (as a percent) |  | 1.30% |  |  |  |  |
Issuance of debt |  | $ 400.0 |  |  |  |  |
Senior unsecured notes due August 15, 2030 |  |  |  |  |  |  |
Debt |  |  |  |  |  |  |
Interest rate (as a percent) |  | 2.15% |  |  |  |  |
Issuance of debt |  | $ 500.0 |  |  |  |  |
Senior unsecured notes due April 15, 2023 |  |  |  |  |  |  |
Debt |  |  |  |  |  |  |
Total |  |  |  |  | $ 500.0 |  | 500.0
Interest rate (as a percent) |  |  | 4.50% |  |  |  |
Issuance of debt |  |  | $ 500.0 |  |  |  |
Aggregate maturities of long-term debt for each of the next five years and thereafter |  |  |  |  |  |  |
Total |  |  |  |  | 500.0 |  | 500.0
Senior unsecured notes due November 15, 2036 |  |  |  |  |  |  |
Debt |  |  |  |  |  |  |
Total |  |  |  |  | 250.0 |  | 250.0
Interest rate (as a percent) |  |  |  | 6.85% |  |  |
Issuance of debt |  |  |  | $ 250.0 |  |  |
Aggregate maturities of long-term debt for each of the next five years and thereafter |  |  |  |  |  |  |
Total |  |  |  |  | 250.0 |  | 250.0
Other notes and revolving credit facilities |  |  |  |  |  |  |
Debt |  |  |  |  |  |  |
Maximum borrowing capacity |  |  |  |  | 8.3 |  |
Other notes and revolving credit facilities | Asia |  |  |  |  |  |  |
Debt |  |  |  |  |  |  |
Lines of credit |  |  |  |  | 5.4 |  | 4.3
IRB |  |  |  |  |  |  |
Debt |  |  |  |  |  |  |
Total |  |  |  |  | 8.3 |  | 9.0
Aggregate maturities of long-term debt for each of the next five years and thereafter |  |  |  |  |  |  |
Total |  |  |  |  | $ 8.3 |  | $ 9.0

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