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Debt (Narrative) (Details)				1 Months Ended		3 Months Ended		9 Months Ended
	Sep. 12, 2023 $ / shares	Jun. 30, 2023 USD ($)	Aug. 04, 2021 USD ($)	Sep. 30, 2023 USD ($) D $ / shares	Jun. 30, 2023 USD ($)	Sep. 30, 2023 USD ($) $ / shares	Sep. 30, 2022 USD ($)	Sep. 30, 2023 USD ($) D $ / shares	Sep. 30, 2022 USD ($)	Dec. 31, 2022 USD ($)
Debt
Payments for repurchase of common stock								$ 58,144,000	$ 21,840,000
Unamortized debt issuance costs				$ 15,290,000		$ 15,290,000		15,290,000		$ 1,547,000
Amortization of discounts, premium, and debt issuance costs								8,486,000	436,000
Interest rate swaps
Debt
Gains (losses) from changes in fair values of interest rate swaps						$ 4,900,000	$ 2,000,000.0	$ 2,700,000	$ 5,900,000
2029 Convertible Notes
Debt
Debt interest rate				2.00%		2.00%		2.00%
Principal amount				$ 345,000,000.0		$ 345,000,000.0		$ 345,000,000.0
Repayment of debt				200,000,000.0
Payments for repurchase of common stock				50,000,000.0
Debt issuance costs				$ 10,800,000		10,800,000		10,800,000
Debt conversion ratio				15.8821
Debt principle amount converted into common stock				$ 1,000		$ 1,000		$ 1,000
Debt conversion price per share | $ / shares	$ 62.96			$ 62.96		$ 62.96		$ 62.96
Convertible debt, percentage of premium over the last reported sale price	35.00%
Convertible debt threshold percentage				130.00%				130.00%
Convertible debt, threshold trading days | D				20				20
Convertible debt, threshold consecutive trading days | D				30				30
Threshold business days after consecutive trading period | D								5
Threshold consecutive trading period | D								5
Percentage of principal amount redeemed				100.00%
Percentage of product sale price								98.00%
Unamortized debt issuance costs				$ 10,800,000		$ 10,800,000		$ 10,800,000
2029 Convertible Notes | Wells Fargo Bank
Debt
Repayment of debt								200,000,000.0
Unamortized debt issuance costs written off						3,000,000.0		3,000,000.0
Secured Debt [Member] | Wells Fargo Bank
Debt
Proceeds from borrowing under lines of credit		$ 500,000,000.0
Amortization of discounts, premium, and debt issuance costs								3,000,000.0
Line of Credit [Member] | Capital One, N.A.
Debt
Maximum borrowing capacity			$ 140,000,000.0
Borrowings			$ 70,000,000.0
Secured Debt [Member] | Wells Fargo Bank
Debt
Repayment of debt								200,000,000.0
Debt issuance costs				14,300,000		14,300,000		14,300,000
Proceeds from borrowing under lines of credit		500,000,000.0
Notional Amount		250,000,000.0			$ 250,000,000.0
Repayments under lines of credit					125,000,000.0
Unamortized debt issuance costs				$ 8,900,000		8,900,000		$ 8,900,000
Secured Debt [Member] | Wells Fargo Bank | In the first year
Debt
Debt Instrument, Annual Principal Payment		12,500,000			12,500,000
Secured Debt [Member] | Wells Fargo Bank | Starting in the Second year
Debt
Debt Instrument, Annual Principal Payment		25,000,000.0			25,000,000.0
Secured Debt [Member] | Wells Fargo Bank | Starting in the third year
Debt
Debt Instrument, Annual Principal Payment		37,500,000			$ 37,500,000
Secured Debt [Member] | Wells Fargo Bank | Interest rate swaps
Debt
Gains (losses) from changes in fair values of interest rate swaps						$ 3,200,000
Secured Debt [Member] | Wells Fargo Bank | Federal funds rate
Debt
Debt Instrument, Basis Spread on Variable Rate					0.50%
Secured Debt [Member] | Wells Fargo Bank | Adjusted term SOFR rate
Debt
Debt Instrument, Basis Spread on Variable Rate					2.25%
Debt instrument interest rate floor, percentage					0.00%
Secured Debt [Member] | Wells Fargo Bank | SOFR rate
Debt
Debt Instrument, Basis Spread on Variable Rate					1.25%
Secured Debt [Member] | Wells Fargo Bank | One month SOFR
Debt
Debt Instrument, Basis Spread on Variable Rate					1.00%
Secured Debt [Member] | Revolving Credit Facility | Wells Fargo Bank
Debt
Maximum borrowing capacity		200,000,000.0			$ 200,000,000.0
Letter of Credit | Secured Debt [Member] | Wells Fargo Bank
Debt
Maximum borrowing capacity		15,000,000.0			15,000,000.0
Swingline Loan | Secured Debt [Member] | Wells Fargo Bank
Debt
Maximum borrowing capacity		$ 15,000,000.0			$ 15,000,000.0
Minimum | Line of Credit [Member] | Secured Debt [Member] | Capital One, N.A.
Debt
Debt Instrument, Basis Spread on Variable Rate			0.50%
Minimum | Secured Debt [Member] | Wells Fargo Bank | Base rate
Debt
Debt Instrument, Basis Spread on Variable Rate					0.50%
Minimum | Secured Debt [Member] | Wells Fargo Bank | SOFR rate
Debt
Debt Instrument, Basis Spread on Variable Rate					1.50%
Maximum | Line of Credit [Member] | Secured Debt [Member] | Capital One, N.A.
Debt
Debt Instrument, Basis Spread on Variable Rate			2.50%
Maximum | Secured Debt [Member] | Wells Fargo Bank | Base rate
Debt
Debt Instrument, Basis Spread on Variable Rate					1.50%
Maximum | Secured Debt [Member] | Wells Fargo Bank | SOFR rate
Debt
Debt Instrument, Basis Spread on Variable Rate					2.50%

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Fair value of the amount outstanding under the credit facility.

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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.

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The cash outflow to reacquire common stock during the period.

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No definition available.

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