Treasury Stock and Share-Based Awards - Additional Information (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions	9 Months Ended
Sep. 30, 2026	Oct. 30, 2025
CUSA Employees and Holdings Directors [Member]
Stockholders Equity Note [Line Items]
Number of restricted shares granted	650
Restricted Stock
Stockholders Equity Note [Line Items]
Share Repurchase Program, Remaining Authorized, Amount	$ 199.7
Number of restricted shares granted	650
Market value of common stock on the dates of grant	$ 27.12
Restricted Stock \| CUSA Employees and Holdings Directors [Member] \| Minimum [Member]
Stockholders Equity Note [Line Items]
Market value of common stock on the dates of grant	$ 26.49
Award vesting period for restricted stock	1 year
Restricted Stock \| CUSA Employees and Holdings Directors [Member] \| Maximum [Member]
Stockholders Equity Note [Line Items]
Market value of common stock on the dates of grant	$ 37.52
Award vesting period for restricted stock	3 years
Performance Shares [Member]
Stockholders Equity Note [Line Items]
Common Stock Shares Repurchased	$ 25.3
Market value of common stock on the dates of grant	$ 26.49
Forfeiture Rate For Stock Awards Grants In Period	2.50%
Unrecognized compensation expense	$ 20.1
Remaining compensation expense recognition period (in years)	1 year 1 month 6 days
Number of hypothetical shares of common stock at IRR levels	2,200
Number of hypothetical shares of common stock	800
Performance Shares [Member] \| Director [Member] \| Maximum [Member]
Stockholders Equity Note [Line Items]
Authorized to Repurchase		$ 300.0
Restricted Stock Units (RSUs) [Member]
Stockholders Equity Note [Line Items]
Share based awards compensation expense	$ 4.6
Remaining compensation expense recognition period (in years)	1 year 6 months
Number of hypothetical shares of common stock at IRR levels	190
Restricted Stock Units (RSUs) [Member] \| Minimum [Member]
Stockholders Equity Note [Line Items]
Forfeiture Rate For Stock Awards Grants In Period	0.00%
Award vesting period for restricted stock	1 year
Restricted Stock Units (RSUs) [Member] \| Maximum [Member]
Stockholders Equity Note [Line Items]
Forfeiture Rate For Stock Awards Grants In Period	5.00%
Award vesting period for restricted stock	3 years
Restricted Stock Units (RSUs) [Member] \| CUSA Employees and Holdings Directors [Member]
Stockholders Equity Note [Line Items]
Number of restricted shares granted	150
Restricted Stock Units (RSUs) [Member] \| CUSA Employees and Holdings Directors [Member] \| Minimum [Member]
Stockholders Equity Note [Line Items]
Market value of common stock on the dates of grant	$ 26.49
Forfeiture rate for restricted stock awards	0.00%
Restricted Stock Units (RSUs) [Member] \| CUSA Employees and Holdings Directors [Member] \| Maximum [Member]
Stockholders Equity Note [Line Items]
Market value of common stock on the dates of grant	$ 36.89
Forfeiture rate for restricted stock awards	8.00%
Performance Units Granted in 2024
Stockholders Equity Note [Line Items]
Estimated performance units granted	200.00%
Performance Units Granted in 2025
Stockholders Equity Note [Line Items]
Estimated performance units granted	189.00%
Performance Units Granted in 2026
Stockholders Equity Note [Line Items]
Estimated performance units granted	118.00%

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Number of hypothetical shares that could vest at the IRR level indicated.

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Number of hypothetical shares of common stock outstanding assuming the maximum internal rate of return for all grants outstanding.

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Payments To Acquire Treasury Stock

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Stockholders Equity Note [Line Items]

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- Definition

Amount authorized for purchase of share under share repurchase plan. Includes, but is not limited to, repurchase of stock and unit of ownership.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 505
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481520/505-30-50-4

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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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (i)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

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Amount of cost to be recognized for nonvested award under share-based payment arrangement. Excludes share and unit options.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (i)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

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Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 718
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-Name Accounting Standards Codification
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-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

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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).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(iii)(01)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

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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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- Definition

An excess of the fair value of the modified award over the fair value of the award immediately before the modification.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (h)(2)(iii)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

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Amount remaining authorized for purchase of share under share repurchase plan. Includes, but is not limited to, repurchase of stock and unit of ownership.

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