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v3.20.1

Long-term Debt (Details) $ in Millions | 3 Months Ended |
--- | --- | ---
Mar. 31, 2020 USD ($) Rate | Dec. 31, 2019 USD ($)
Debt Instrument [Line Items] |  |
Senior Notes | $ | $ 550.0 | $ 550.0
Long-term Debt, Gross | $ | 1,073.8 | 1,040.8
Unamortized Debt Issuance Expense | $ | 8.3 | 8.5
Long-term Debt | $ | $ 1,065.5 | 1,032.3
Leverage Ratio | 1.14 |
Letters of Credit Outstanding, Amount | $ | $ 3.9 |
Maximum [Member] |  |
Debt Instrument [Line Items] |  |
Leverage Ratio in Latest Year of Debt Term | 3.75% |
Leverage Ratio | 4.25% |
$250 Million Revolving Credit Facility, Due November 2024 [Member] |  |
Debt Instrument [Line Items] |  |
Secured Debt | $ | $ 33.0 | 0.0
Debt Instrument, Interest Rate, Increase (Decrease) | 0.25% |
Line of Credit Facility, Maximum Borrowing Capacity | $ | $ 250.0 |
$822 Million Term B Loan Facility, due April 2025 [Member] [Domain] |  |
Debt Instrument [Line Items] |  |
Secured Debt | $ | 490.8 | $ 490.8
Senior Notes [Member] |  |
Debt Instrument [Line Items] |  |
Debt Instrument, Face Amount | $ | $ 550.0 |
Senior Notes [Member] |  |
Debt Instrument [Line Items] |  |
Debt Instrument, Interest Rate, Stated Percentage | 4.625% |
Notes Payable to Banks [Member] | $250 Million Revolving Credit Facility, Due November 2024 [Member] | Minimum [Member] |  |
Debt Instrument [Line Items] |  |
Debt Instrument, Basis Spread on Variable Rate | 0.25% |
Notes Payable to Banks [Member] | $250 Million Revolving Credit Facility, Due November 2024 [Member] | Maximum [Member] |  |
Debt Instrument [Line Items] |  |
Debt Instrument, Basis Spread on Variable Rate | 1.25% |
Notes Payable to Banks [Member] | $822 Million Term B Loan Facility, due April 2025 [Member] [Domain] | Minimum [Member] |  |
Debt Instrument [Line Items] |  |
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage | 0.20% |
Notes Payable to Banks [Member] | $822 Million Term B Loan Facility, due April 2025 [Member] [Domain] | Maximum [Member] |  |
Debt Instrument [Line Items] |  |
Debt Instrument, Basis Spread on Variable Rate | 0.75% |
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage | 0.35% |
Notes Payable to Banks [Member] | Long-term Debt [Member] | Maximum [Member] |  |
Debt Instrument [Line Items] |  |
Line of Credit Facility, Interest Rate During Period | 2.78% |
Notes Payable to Banks [Member] | Eurodollar [Member] | $250 Million Revolving Credit Facility, Due November 2024 [Member] | Minimum [Member] |  |
Debt Instrument [Line Items] |  |
Debt Instrument, Basis Spread on Variable Rate | 1.25% |
Notes Payable to Banks [Member] | Eurodollar [Member] | $250 Million Revolving Credit Facility, Due November 2024 [Member] | Maximum [Member] |  |
Debt Instrument [Line Items] |  |
Debt Instrument, Basis Spread on Variable Rate | 2.25% |
Notes Payable to Banks [Member] | Eurodollar [Member] | $822 Million Term B Loan Facility, due April 2025 [Member] [Domain] | Maximum [Member] |  |
Debt Instrument [Line Items] |  |
Debt Instrument, Basis Spread on Variable Rate | 1.75% |
$250 Million Revolving Credit Facility, Due November 2024 [Member] |  |
Debt Instrument [Line Items] |  |
Line of Credit Facility, Remaining Borrowing Capacity | $ | $ 213.1 |

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- Definition Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=109500613&loc=SL6031897-161870 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(16)) -URI http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910 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)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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