Financing - Narrative (Details)	Mar. 17, 2023 USD ($)	Aug. 11, 2022 USD ($)	Jul. 28, 2021 USD ($)	Mar. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Jul. 27, 2021 USD ($)
4.45% notes due December 2023 a
Line of Credit Facility [Line Items]
Debt instrument, maximum borrowing capacity			$ 650,000,000			$ 550,000,000
Revolving Credit Facility | Line of Credit
Line of Credit Facility [Line Items]
Maximum borrowing capacity			$ 650,000,000
Line of credit facility, term (in years)			5 years
Debt Instrument, Covenant, Debt To Capitalization Ratio Not To Exceed			0.65
Long-term debt				$ 0	$ 0
Revolving Credit Facility | Line of Credit | Minimum | LIBOR
Line of Credit Facility [Line Items]
Margin rate			0.00%
Revolving Credit Facility | Line of Credit | Minimum | Index Debt Rating
Line of Credit Facility [Line Items]
Margin rate			0.805%
Revolving Credit Facility | Line of Credit | Maximum | LIBOR
Line of Credit Facility [Line Items]
Margin rate			0.50%
Revolving Credit Facility | Line of Credit | Maximum | Index Debt Rating
Line of Credit Facility [Line Items]
Margin rate			1.50%
Revolving Credit Facility | Five Year Term Loan Facility | Line of Credit
Line of Credit Facility [Line Items]
Maximum borrowing capacity	$ 500,000,000
Line of credit facility, term (in years)	5 years
Debt Instrument, Covenant, Net Leverage Ratio, Maximum	3.50
Debt Instrument, Covenant, Net Leverage Ratio Adjustment, Maximum	4.00
Debt Instrument, Covenant, Interest Coverage Ratio, Minimum	3.00
Revolving Credit Facility | Five Year Term Loan Facility | Line of Credit | Minimum
Line of Credit Facility [Line Items]
Line of Credit Facility, Commitment Fee Percentage	0.20%
Revolving Credit Facility | Five Year Term Loan Facility | Line of Credit | Maximum
Line of Credit Facility [Line Items]
Line of Credit Facility, Commitment Fee Percentage	0.35%
Revolving Credit Facility | Five Year Term Loan Facility | Line of Credit | Variable Rate Component One | Minimum | SOFR
Line of Credit Facility [Line Items]
Debt Instrument, Basis Spread on Variable Rate, Adjustment	0.10%
Margin rate	1.50%
Revolving Credit Facility | Five Year Term Loan Facility | Line of Credit | Variable Rate Component One | Maximum | SOFR
Line of Credit Facility [Line Items]
Margin rate	2.25%
Revolving Credit Facility | Five Year Term Loan Facility | Line of Credit | Variable Rate Component Two | Minimum | SOFR
Line of Credit Facility [Line Items]
Margin rate	0.50%
Revolving Credit Facility | Five Year Term Loan Facility | Line of Credit | Variable Rate Component Two | Maximum | SOFR
Line of Credit Facility [Line Items]
Margin rate	1.25%
Line of Credit | Notes Payable to Banks
Line of Credit Facility [Line Items]
Debt instrument, term (in days)		364 days
Debt instrument, maximum borrowing capacity		$ 400,000,000
Line of Credit | Minimum | SOFR | Notes Payable to Banks
Line of Credit Facility [Line Items]
Margin rate		1.25%
Line of Credit | Minimum | LIBOR | Notes Payable to Banks
Line of Credit Facility [Line Items]
Margin rate		0.25%
Line of Credit | Maximum | SOFR | Notes Payable to Banks
Line of Credit Facility [Line Items]
Margin rate		1.50%
Line of Credit | Maximum | LIBOR | Notes Payable to Banks
Line of Credit Facility [Line Items]
Margin rate		0.50%
Line of Credit | Three Year Term Loan Facility
Line of Credit Facility [Line Items]
Maximum borrowing capacity	$ 350,000,000
Line of credit facility, term (in years)	3 years