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Long-Term Debt - Credit Facility (Details) $ in Millions	3 Months Ended		9 Months Ended			13 Months Ended	22 Months Ended	45 Months Ended
	Sep. 30, 2021 USD ($)	Sep. 30, 2020 USD ($)	Sep. 30, 2023	Sep. 30, 2021 USD ($)	Sep. 30, 2020 USD ($)	Nov. 08, 2024	Dec. 31, 2022	Nov. 08, 2024	Feb. 22, 2021 USD ($)	Dec. 31, 2020 USD ($)
Credit Facility
Line of Credit Facility
Letter of credit outstanding	$ 12.5			$ 12.5
Debt instrument, variable rate (percentage)				2.40%
Debt instrument weighted average interest rate (percent)	2.60%			2.60%						2.70%
Commitment fee amount	$ 0.5	$ 0.4		$ 1.5	$ 1.5
Undrawn capacity under revolving credit facility	$ 517.5			517.5
Maximum borrowing capacity									$ 750.0	$ 1,250.0
Credit Facility, Amendment 3
Line of Credit Facility
Transaction costs									$ 1.8
Debt issuance cost written off				$ 4.9
Forecasted | Credit Facility
Line of Credit Facility
Senior Secured Debt to EBITDA								3.00
Total Debt to EBITDA ratio			5.50			5.25	5.75
Total debt to EBITDA ratio in period which an acquisition is completed and for two quarters following such quarter						5.50

X

- Definition

Maximum senior secured debt to EBITDA under terms of debt agreement

+ References

No definition available.

+ Details

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- Definition

Represents the maximum ratio of total debt to EBITDA ratio required in period which an acquisition satisfying certain thresholds is completed and for two quarters following such quarter under the terms of the credit agreement.

+ References

No definition available.

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- Definition

Represents the maximum ratio of total debt to EBITDA required during the period under the terms of the partnership credit agreement.

+ References

No definition available.

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- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

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- Definition

Weighted average interest rate of debt outstanding.

+ References

No definition available.

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- Definition

Amount, before accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=124435984&loc=d3e28555-108399

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- Definition

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

+ References

No definition available.

+ Details

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- Definition

Amount of the fee for available but unused credit capacity under the credit facility.

+ 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))
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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

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- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ References

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-Publisher FASB
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- Definition

Write-off of amounts previously capitalized as debt issuance cost in an extinguishment of debt.

+ References

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