Treasury Stock and Share-Based Awards - Additional Information (Detail) $ / shares in Units, shares in Thousands, $ in Millions	6 Months Ended
	Jun. 30, 2025 USD ($) $ / shares shares
Stockholders Equity Note [Line Items]
Authorized to Repurchase | $	$ 200.0
Market value of common stock on the dates of grant | $ / shares	$ 27.84
Forfeiture Rate For Stock Awards Grants In Period	2.50%
Number of shares issuable under the restricted stock awards granted	130
Restricted Stock (Member)
Stockholders Equity Note [Line Items]
Number of restricted shares granted	540
Restricted Stock (Member) | CUSA Employees and Holdings Directors [Member]
Stockholders Equity Note [Line Items]
Number of restricted shares granted	540
Restricted Stock (Member) | CUSA Employees and Holdings Directors [Member] | Minimum
Stockholders Equity Note [Line Items]
Market value of common stock on the dates of grant | $ / shares	$ 27.01
Forfeiture rate for restricted stock awards	0.00%
Award vesting period for restricted stock	1 year
Restricted Stock (Member) | CUSA Employees and Holdings Directors [Member] | Maximum
Stockholders Equity Note [Line Items]
Market value of common stock on the dates of grant | $ / shares	$ 32.65
Forfeiture rate for restricted stock awards	7.50%
Award vesting period for restricted stock	3 years
Performance Shares [Member]
Stockholders Equity Note [Line Items]
Market value of common stock on the dates of grant | $ / shares	$ 27.45
Unrecognized compensation expense | $	$ 19.2
Remaining compensation expense recognition period (in years)	1 year 3 months 18 days
Number of hypothetical shares of common stock at IRR levels	2,480
Number of hypothetical shares of common stock	710
Restricted Stock Units [Member]
Stockholders Equity Note [Line Items]
Market value of common stock on the dates of grant | $ / shares	$ 27.45
Company Recognized Compensation Expense | $	$ 0.6
Unrecognized compensation expense | $	$ 2.3
Remaining compensation expense recognition period (in years)	1 year 8 months 12 days
Number of hypothetical shares of common stock at IRR levels	130
Restricted Stock Units [Member] | Minimum
Stockholders Equity Note [Line Items]
Forfeiture rate for restricted stock awards	0.00%
Award vesting period for restricted stock	1 year
Restricted Stock Units [Member] | Maximum
Stockholders Equity Note [Line Items]
Forfeiture rate for restricted stock awards	7.50%
Award vesting period for restricted stock	3 years