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Debt - Summary of Debt and Capital Leases Outstanding (Details) - USD ($) | 3 Months Ended |
--- | --- | ---
Mar. 31, 2021 | Dec. 31, 2020
Debt Instrument |  |
Total debt | $ 1,514,400,000 | $ 1,515,500,000
Less: current installments of long-term debt | 7,400,000 | 7,400,000
Total long-term debt | 1,507,000,000.0 | 1,508,100,000
Domestic Line of Credit | USD Term Loan |  |
Debt Instrument |  |
Debt face amount | 750,000,000 |
Total debt | 726,000,000.0 | 727,500,000
Unamortized discount (premium) and debt issuance costs, net | $ 7,200,000 | $ 7,600,000
Effective interest rate (percent) | 2.30% | 2.40%
Domestic Line of Credit | USD Term Loan | LIBOR |  |
Debt Instrument |  |
Spread on variable rate (percent) | 2.00% |
Senior Notes |  |
Debt Instrument |  |
Unamortized discount (premium) and debt issuance costs, net | $ 11,600,000 | $ 12,000,000.0
Effective interest rate (percent) | 4.10% | 4.10%
Senior Notes | USD Senior Notes, Due 2028 |  |
Debt Instrument |  |
Debt face amount | $ 800,000,000 |
Stated interest rate (percent) | 3.875% |
Total debt | $ 788,400,000 | $ 788,000,000.0

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- Definition Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 6 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=120520924&loc=SL6036836-161870 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=119993939&loc=d3e28551-108399 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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