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Stockholders' Equity - (Detail) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant	500,000		500,000
Equity-based compensation expense	$ 4.7	$ 1.5	$ 8.1	$ 3.4
Payment, Tax Withholding, Share-based Payment Arrangement	0.8	0.4	3.9	4.6
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount	19.0		19.0
Share-based Payment Arrangement, Expense, Tax Benefit	1.0	0.4	1.3	0.9
Proceeds from Stock Options Exercised	1.1	0.0	1.1	0.0
Cost of Sales [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Other Comprehensive (Income) Loss, Defined Benefit Plan, Reclassification Adjustment from AOCI, before Tax	$ 0.6	$ 0.8	$ 1.1	$ 1.5
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of share-based awards granted			221,319
Grant-date fair value of awards per share			$ 38.18
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements	0	91,000	0	152,000
Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of share-based awards granted			163,310
Grant-date fair value of awards per share			$ 40.17
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements	0	2,000	0	2,000

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