CAPITAL STOCK AND SHARE-BASED COMPENSATION - Narrative (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock, authorized (shares)	60,000,000	60,000,000
Common stock, par value (usd per share)	$ 0.001	$ 0.001
Preferred stock, authorized (shares)	5,000,000	5,000,000
Preferred stock, par value (usd per share)	$ 0.001	$ 0.001
Common stock, issued (shares)	38,131,478	37,891,186
Common stock, outstanding (shares)	32,667,631	32,511,465
Preferred stock, issued (shares)	0	0
Percentage of ownership in subsidiaries	50.00%
Equity-based awards, number of shares authorized (shares)	2,500,000
Equity-based awards, shares available for grant (shares)	1,200,000
Percentage of total combined voting power of the Company and subsidiaries	10.00%
Percentage of market value for purchases under Employee Stock Purchase Program (percent)	85.00%
Employee Stock Purchase Plan expense	$ 0.3	$ 0.7	$ 0.7
Options granted (shares)	55,280
Performance-based objective satisfied percentage	127.23%
Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period of equity-based awards	4 years
Common Stock Shares Authorized For Issuance To Employee Stock Purchase Plan	4,500,000
Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period of equity-based awards	12 months
Share-Based Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair value of share of common stock (percent)	100.00%
Share Based Awards to More Than Ten Percent Owner [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair value of share of common stock (percent)	110.00%
Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options granted (shares)	55,280	33,656	40,788
Stock compensation expense	$ 2.1	$ 1.7	$ 3.6
Tax benefit from stock option exercise	0.1	0.4	1.0
Intrinsic value of options outstanding	1.4
Intrinsic value of options exerciseable	1.0
Intrinsic value of options exercised during the period	0.2	1.5	5.1
Unrecognized compensation expense	$ 1.8
Unrecognized compensation expense weighted-average period for recognitions (years)	1 year 6 months
Stock Option [Member] \| Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Contractual term of share-based award	ten years
Non-Vested Stock Units [Member] \| Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period of equity-based awards	4 years
Non-Vested Stock Units [Member] \| Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period of equity-based awards	1 year
Non-Vested Stock Units - Service-Based [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock compensation expense	$ 24.2	$ 12.1	$ 9.4
Unrecognized compensation expense	$ 28.5
Unrecognized compensation expense weighted-average period for recognitions (years)	2 years
Non-vested stock granted, weighted average grant date fair value (usd per share)	$ 81.18	$ 115.07	$ 234.42
Non-Vested Stock Units - Service-Based and Performance-Based [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock compensation expense	$ 2.4	$ 2.2	$ 10.2
Unrecognized compensation expense	$ 9.3
Unrecognized compensation expense weighted-average period for recognitions (years)	3 years 1 month 6 days
Non-vested stock granted, weighted average grant date fair value (usd per share)	$ 82.00	$ 133.70	$ 262.67

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