SHAREHOLDERS' EQUITY (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Jul. 24, 2020	Feb. 28, 2019	Feb. 28, 2018	May 31, 2017
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Weighted average basic common shares (in shares)	12,915,000	12,723,000	12,881,000	12,812,000
Effect of stock options (in shares)	0	0	10,000	0
Effect of dilutive share awards (in shares)	0	0	21,000	0
Weighted average diluted common shares (in shares)	12,915,000	12,723,000	12,912,000	12,812,000
Additional disclosure
Antidilutive securities excluded from computation of earnings per share (in shares)		200,000		200,000
Common stock repurchases
Value of common stock authorized to be repurchased						$ 150.0	$ 100.0
Repurchased shares of common stock under stock repurchase program (in shares)			0	379,895
Remaining authorized repurchase amount	$ 96.7		$ 96.7
2025 Convertible Notes
Additional disclosure
Stated interest rate	0.50%		0.50%
2025 Convertible Notes | Convertible Debt
Additional disclosure
Stated interest rate	0.50%		0.50%		0.50%
2022 Convertible Notes
Additional disclosure
Stated interest rate		0.625%		0.625%
2022 Convertible Notes | Convertible Debt
Additional disclosure
Stated interest rate	0.625%		0.625%					0.625%
Option
Additional disclosure
Antidilutive securities excluded from computation of earnings per share (in shares)	1,200,000	1,000,000	1,000,000	1,000,000
Restricted Stock Units (RSUs)
Additional disclosure
Antidilutive securities excluded from computation of earnings per share (in shares)	600,000	500,000	500,000	400,000
Convertible Debt
Additional disclosure
Antidilutive securities excluded from computation of earnings per share (in shares)	800,000	2,100,000	1,200,000	2,100,000