Face (par) amount of debt instrument at time of issuance.

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

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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

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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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.

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Borrowings and Debt - Schedule of Long-Term Debt (Details) - USD ($)	Dec. 31, 2021	Dec. 17, 2021	Feb. 23, 2021	Dec. 31, 2020	Nov. 17, 2020	Sep. 03, 2020	Jul. 31, 2016
Borrowings and debt
Borrowings	$ 400,000,000.0
Significant other observable inputs (Level II)
Borrowings and debt
Borrowings	394,900,000			$ 394,300,000
Fair Value	412,900,000			424,900,000
Line of Credit \| Revolving credit facility
Borrowings and debt
Face amount	125,000,000		$ 125,000,000	150,000,000	$ 150,000,000	$ 150,000,000
Line of Credit \| Revolving credit facility \| Significant other observable inputs (Level II)
Borrowings and debt
Borrowings	0			0
Fair Value	0			0
Line of Credit \| Revolving credit facility \| Revolving Credit Facility Expiring August 22, 2022 \| Significant other observable inputs (Level II)
Borrowings and debt
Borrowings	0			0
Fair Value	0			0
Senior notes \| 4.80% Senior Notes Due July 27, 2026
Borrowings and debt
Face amount	$ 275,000,000						$ 275,000,000
Interest rate (as a percent)	4.80%
Senior notes \| 4.80% Senior Notes Due July 27, 2026 \| Significant other observable inputs (Level II)
Borrowings and debt
Borrowings	$ 273,100,000			272,800,000
Fair Value	286,500,000			298,900,000
Senior notes \| 5.125% Senior Notes Due August 1, 2031
Borrowings and debt
Face amount	$ 125,000,000	$ 125,000,000					$ 125,000,000
Interest rate (as a percent)	5.125%	5.125%					5.125%
Senior notes \| 5.125% Senior Notes Due August 1, 2031 \| Significant other observable inputs (Level II)
Borrowings and debt
Borrowings	$ 121,800,000			121,500,000
Fair Value	$ 126,400,000			$ 126,000,000.0