CAPITAL STOCK - Schedule of Capital Stock (Details) - USD ($) shares in Thousands, $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Proceeds from issuance of capital stock	$ 0.0	$ 0.0	$ 0.3	$ 3.9
Capital stock
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issued and outstanding, beginning balance (in shares)			116,100	119,000
Issued from treasury (in shares)			100	300
Cancelled under NCIB (in shares)			(1,200)	(2,900)
Issued and outstanding, ending balance (in shares)	115,000	116,400	115,000	116,400
Treasury stock
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based payment award, exercises in period (in shares)	0	0	30	300
Proceeds from issuance of capital stock	$ 0.3	$ 0.3	$ 0.3	$ 3.9

Stock, Common Shares, Cancelled During Period

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- Definition

Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

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- Definition

The cash inflow from the additional capital contribution to the entity.

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- Definition

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

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- Definition

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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