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Retirement and Share-based Compensation Plans (Defined Contribution Plan) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Share-Based Payment Arrangement [Abstract]
Defined contribution plan, maximum annual employee contribution	$ 22,500	$ 20,500	$ 19,500
Defined contribution plan, employer plan contributions	$ 4,000,000	$ 3,300,000	$ 2,700,000

X

- Definition

Amount of cost for defined contribution plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 715
-SubTopic 70
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480794/715-70-50-1

+ Details

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X

- Definition

Maximum amount the employee may contribute to a defined contribution plan.

+ References

No definition available.

+ Details

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X

- References

No definition available.

+ Details

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