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Long Term Debt - Additional Information (Detail) - USD ($) $ in Millions | 1 Months Ended | 3 Months Ended | 6 Months Ended |  |
--- | --- | --- | --- | --- | ---
May 26, 2023 | Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022 | May 01, 2023 | Dec. 31, 2022
Debt Instrument [Line Items] |  |  |  |  |  |  |
Legal and other fees |  | $ 0.5 |  | $ 0.5 |  |  |
Multiple consolidated interest expense under sub condition two of condition two under dividend restriction |  |  |  | 1.75 |  |  |
Interest rate |  | 4.50% |  | 4.50% |  |  |
Restricted payments available amount |  | $ 262.5 |  | $ 262.5 |  |  |
Minimum |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Net Total Leverage Ratio |  |  |  | 1.00% |  |  |
Net Total Leverage Ratio Maximum |  |  |  | 1.00% |  |  |
Net Total Leverage Ratio Minimum |  |  |  | 1.00% |  |  |
Maximum |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Net Total Leverage Ratio |  |  |  | 2.75% |  |  |
Net Total Leverage Ratio Maximum |  |  |  | 5.00% |  |  |
Net Total Leverage Ratio Minimum |  |  |  | 2.75% |  |  |
5.875% Senior Notes |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Interest rate | 5.875% |  |  |  |  |  |
5.250% Senior Notes |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Interest rate | 5.25% |  |  |  |  |  |
4.50 % Convertible Senior Notes |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Interest rate |  |  | 4.50% |  | 4.50% |  |
8.750 % Senior Notes |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Aggregate principal amount of add-on to Senior Notes |  |  |  |  |  | $ 100.0 |
Debt instrument accrued interest |  |  |  | $ 106.6 |  |  |
Debt total |  |  |  |  |  | $ 3.4 |
Write off of Deferred Debt Issuance Cost |  |  |  | 1.2 |  |  |
Premium paid on the redemption of bond |  |  |  | 2.2 |  |  |
Interest rate | 8.75% |  |  |  |  | 8.75% |
Remaining principal amount of optional redemption |  |  |  | 150.0 |  |  |
unamortized debt issuance costs |  |  |  | $ 1.2 |  |  |
Amended Senior Secured Credit Facility [Member] | Minimum |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Senior Secured Leverage Ratio Required |  |  |  | 1.00% |  |  |
Amended Senior Secured Credit Facility [Member] | Maximum |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Senior Secured Leverage Ratio Required |  |  |  | 3.50% |  |  |
Revolving Credit Facility [Member] | Amended Senior Secured Credit Facility [Member] | Minimum |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Senior Secured Leverage Ratio Required |  |  |  | 1.00% |  |  |
Revolving Credit Facility [Member] | Amended Senior Secured Credit Facility [Member] | Maximum |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Senior Secured Leverage Ratio Required |  |  |  | 0.60% |  |  |
CUSA [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Repayments of long-term debt |  |  |  | $ (6.4) | $ (6.9) |  |
Proceeds, net from long term borrowing |  |  |  | $ 632.7 |  |  |
Average interest rate on outstanding borrowings |  | 6.80% |  | 6.80% |  |  |
Debt issuance costs |  | $ 30.7 |  | $ 30.7 |  |  | $ 22.9
Debt instrument, maturity date |  |  |  | May 24, 2030 |  |  |
Loss on debt extinguishment and refinancing |  | 10.7 | $ 0.0 | $ 10.7 | $ 0.0 |  |
Fair value of long-term debt |  | 1,868.2 |  | $ 1,868.2 |  |  | $ 1,771.3
CUSA [Member] | Minimum |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Percentage of variable margin rate added to Eurodollar rate |  |  |  | 0.20% |  |  |
CUSA [Member] | Maximum |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Percentage of variable margin rate added to Eurodollar rate |  |  |  | 0.375% |  |  |
CUSA [Member] | Senior Secured Credit Facility |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Aggregate principal amount of add-on to Senior Notes | $ 775.0 |  |  |  |  |  |
CUSA [Member] | Revolving Credit Facility [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Revolving credit line, maturity date | May 26, 2028 |  |  |  |  |  |
Term Loan Credit facility |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
PercentageOfVariableRateAddedToSecuredOvernightFinancingRate |  |  |  | 0.50% |  |  |
Percentage of variable margin rate added to Eurodollar rate |  |  |  | 2.75% |  |  |
Term Loan Credit facility | Minimum |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Total leverage ratio, percentage |  |  |  | 1.00% |  |  |
Term Loan Credit facility | Maximum |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Net Total Leverage Ratio |  |  |  | 2.80% |  |  |
Term Loan Credit facility | Senior Secured Credit Facility |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt instrument description of interest |  |  |  | SOFR for a period of 1, 3, or 6 months (depending upon the Interest Period (as defined in the Credit Agreement) chosen by CUSA) (the "Term SOFR Rate"), subject to a floor of 0.50% per annum, plus an applicable margin of 3.75% per annum, |  |  |
Term Loan Credit facility | 5.250% Senior Notes |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Interest rate | 5.25% |  |  |  |  |  |
Term Loan Credit facility | Amended Senior Secured Credit Facility [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Percentage of variable margin rate added to Eurodollar rate |  |  |  | 3.75% |  |  |
Percentage Of Variable Rate Added To Federal Reserve Bank Effective Rate |  |  |  | 1.00% |  |  |
Percentage Of Variable Rate Added To Alternate Base Rate |  |  |  | 1.00% |  |  |
Term Loan Credit facility | CUSA [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Original issue discount |  |  |  | $ 9.8 |  |  |
Debt issuance costs capitalized |  | 7.5 |  | 7.5 |  |  |
Lender fees paid on debt extinguishment |  | 2.1 |  | 2.1 |  |  |
Unamortized debt issuance costs |  | 4.7 |  | 4.7 |  |  |
Repayments of long-term debt |  |  |  | (628.3) |  |  |
Debt issuance costs |  | 10.1 |  | $ 10.1 |  |  |
Term Loan Credit facility | CUSA [Member] | Senior Secured Credit Facility |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Aggregate principal amount of add-on to Senior Notes | $ 650.0 |  |  |  |  |  |
Quarterly principal payments due | $ 1.6 |  |  |  |  |  |
Last quarterly payment date | Mar. 31, 2030 |  |  |  |  |  |
Final principal payment due date | May 24, 2030 |  |  |  |  |  |
Revolving Credit Line |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Percentage Of Variable Rate Added To Alternate Base Rate |  |  |  | 1.00% |  |  |
Revolving Credit Line | Amended Senior Secured Credit Facility [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Amount outstanding under the revolving credit line |  | 0.0 |  | $ 0.0 |  |  |
Long-term Line of Credit, Total |  | $ 0.0 |  | $ 0.0 |  |  |
Percentage of variable margin rate added to Eurodollar rate |  |  |  | 3.50% |  |  |
Percentage Of Variable Rate Added To Alternate Base Rate |  |  |  | 1.50% |  |  |
Revolving Credit Line | Amended Senior Secured Credit Facility [Member] | Minimum |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
PercentageOfVariableRateAddedToSecuredOvernightFinancingRate |  |  |  | 3.00% |  |  |
Percentage Of Variable Rate Added To Alternate Base Rate |  |  |  | 2.00% |  |  |
Revolving Credit Line | Amended Senior Secured Credit Facility [Member] | Maximum |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
PercentageOfVariableRateAddedToSecuredOvernightFinancingRate |  |  |  | 3.50% |  |  |
Percentage Of Variable Rate Added To Alternate Base Rate |  |  |  | 2.50% |  |  |
Revolving Credit Line | CUSA [Member] | Senior Secured Credit Facility |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Aggregate principal amount of add-on to Senior Notes | $ 125.0 |  |  |  |  |  |

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- Definition The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. + References Reference 1: 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 https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 2: 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 https://asc.fasb.org/extlink&oid=126897435&loc=d3e534808-122878 Reference 3: 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 https://asc.fasb.org/extlink&oid=126734703&loc=d3e572229-122910 + Details
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- Definition Date the credit facility terminates, in YYYY-MM-DD format. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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- Definition The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. + References No definition available. + Details
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- Definition The excess of the (1) fair value of consideration transferred to the holders of a security in excess of (2) the carrying amount of the security reported on the registrant's balance sheet, which will be deducted from net earnings to derive net earnings available to common shareholders. This amount is generally an adjustment considered in the computation of earnings per share. + References No definition available. + Details
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- Definition The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3291-108585 + Details
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- Definition The remaining balance of debt issuance expenses that were capitalized and are being amortized against income over the lives of the respective bond issues. This does not include the amounts capitalized as part of the cost of the utility plant or asset. + References No definition available. + Details
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- Definition Write-off of amounts previously capitalized as debt issuance cost in an extinguishment of debt. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.8) -URI https://asc.fasb.org/extlink&oid=126953954&loc=SL114868664-224227 + Details
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