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Stock Award Plans and Stock-Based Compensation - Restricted Stock Units and Restricted Stock (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Restricted Stock
Stock Award Plans and Stock-Based Compensation
Granted (in shares)	0	0	0
Vested (in shares)	0	0	0
Restricted Stock Units
Stock Award Plans and Stock-Based Compensation
Granted (in shares)	249
Vested (in shares)	(296)
Granted (in dollars per share)	$ 112.45	$ 125.11	$ 55.47
Equity incentive plan 2012 | Restricted Stock
Stock Award Plans and Stock-Based Compensation
Granted (in shares)	0	0	0
Equity incentive plan 2012 | Restricted Stock Units
Stock Award Plans and Stock-Based Compensation
Total forfeiture adjusted unrecognized compensation cost (in dollars)	$ 37.0
Weighted-average period over which unrecognized compensation cost is expected to be recognized	2 years 7 months 6 days

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Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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