Share-Based Plans - Summary of Restricted Stock and Stock Option Activity (Detail) - USD ($) $ / shares in Units, $ in Millions		12 Months Ended
Jan. 31, 2022	Dec. 31, 2022
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Options, Granted (in shares)		458,881
Options, Exercised (in shares)		(30,355)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Award vesting percentage		50.00%
Reissued treasury stock (in shares)		59,004
Increase in stock compensation expense		$ 18.8
Common Stock
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Options, Granted (in shares)		0
Options, Exercised (in shares)		0
Sterling
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Shares issued (in shares)	87,965,239
Sterling \| Common Stock
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Shares issued (in shares)	1,126,495
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Restricted stock, Outstanding at beginning of period (in shares)		529,284
Restricted Stock, Granted (in shares)		711,503
Restricted stock, Sterling replacement awards (in shares)		1,185,499
Restricted stock, Adjustment (in shares)		187,915
Restricted stock, Vested restricted stock awards (in shares)		(993,512)
Restricted stock, Forfeited (in shares)		(140,947)
Restricted stock, Outstanding at end of period (in shares)		1,479,742
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Restricted stock, at beginning of period, Weighted-average Grant Date Fair Value (in dollars per share)		$ 48.77
Restricted stock, Granted (in dollars per share)		54.95
Restricted stock, Sterling replacement awards (in dollars per share)		56.81
Restricted stock, Adjustment (in dollars per share)		56.81
Restricted stock, Vested restricted stock awards (in dollars per share)		48.69
Restricted stock, Forfeited (in dollars per share)		51.43
Restricted stock, at end of period, Weighted-average Grant Date Fair Value (in dollars per share)		$ 50.47
Performance-Based
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Restricted stock, Outstanding at beginning of period (in shares)		266,417
Restricted Stock, Granted (in shares)		307,852
Restricted stock, Sterling replacement awards (in shares)		0
Restricted stock, Adjustment (in shares)		(187,915)
Restricted stock, Vested restricted stock awards (in shares)		(59,400)
Restricted stock, Forfeited (in shares)		(16,580)
Restricted stock, Outstanding at end of period (in shares)		310,374
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Restricted stock, at beginning of period, Weighted-average Grant Date Fair Value (in dollars per share)		$ 50.03
Restricted stock, Granted (in dollars per share)		57.66
Restricted stock, Sterling replacement awards (in dollars per share)		0
Restricted stock, Adjustment (in dollars per share)		47.43
Restricted stock, Vested restricted stock awards (in dollars per share)		56.14
Restricted stock, Forfeited (in dollars per share)		55.63
Restricted stock, at end of period, Weighted-average Grant Date Fair Value (in dollars per share)		$ 57.65
Performance-Based \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Award vesting percentage		0.00%
Performance-Based \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Award vesting percentage		150.00%
Performance-Based \| Share Based Payment Arrangement Executives
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Restricted Stock, Granted (in shares)		127,524
Performance-Based \| Sterling \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Award vesting percentage		50.00%
Performance-Based \| Sterling \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Award vesting percentage		100.00%
Stock Options Outstanding
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Options outstanding, at beginning of period, Number of Shares		107,612
Options, Granted (in shares)		0
Options, Sterling replacement awards (in shares)		10,972
Options, Adjustments (in shares)		0
Options, Vested (in shares)		0
Options, Forfeited (in shares)		0
Options, Exercised (in shares)		(30,355)
Options outstanding, at end of period, Number of Shares		88,229
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Options, at beginning of period, Weighted-average Exercise Price (in dollars per share)		$ 23.05
Options, Granted (in dollars per share)		0
Options, Sterling replacement awards (in dollars per share)		29.14
Options, Adjustment (in dollars per share)		0
Options, Vested (in dollars per share)		0
Options, Forfeited (in dollars per share)		0
Options, Exercised (in dollars per share)		23.18
Options, at end of period, Weighted-average Exercise Price (in dollars per share)		$ 23.76

Number of shares of equity interests issued or issuable to acquire entity.

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The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

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Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event.

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The number of grants made 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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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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The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options.

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The net total number of shares (or other type of equity) under an equity-based award plan, other than a stock option plan, that were granted, vested and forfeited during the reporting period.

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The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.

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For presentations that combine terminations, the number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan or that expired.

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Weighted average price of options that were either forfeited or expired.

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Net number of share options (or share units) granted during the period.

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Number of options outstanding, including both vested and non-vested options.

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Weighted average price at which option holders acquired shares when converting their stock options into shares.

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Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

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Percentage of vesting of award under share-based payment arrangement.

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Number of options vested.

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Number of share options (or share units) exercised during the current period.

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Number of treasury shares or units reissued. Excludes reissuance of shares or units in treasury for award under share-based payment arrangement.

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Increase (Decrease) Of Stock Compensation Expense

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