SHAREHOLDERS' EQUITY - Narrative (Details) $ / shares in Units, $ in Millions	1 Months Ended	12 Months Ended
	Dec. 31, 2018 shares	Dec. 31, 2025 USD ($) plan $ / shares shares	Dec. 31, 2024 USD ($) $ / shares shares	Dec. 31, 2023 USD ($) $ / shares shares	Dec. 31, 2022 shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of compensation plans (in plans) \| plan		2
Share based compensation cost \| $		$ 7.4	$ 2.8	$ 3.0
Employee stock option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of options outstanding (in shares)		385,135	489,383	541,657	509,212
Share based compensation cost \| $		$ 0.5	$ 0.5	$ 0.9
Share based compensation cost, future income tax benefits \| $		0.1	0.2	0.2
Total intrinsic value of options exercised \| $		1.1	1.0	0.3
Unrecognized compensation costs, unvested stock options \| $		$ 0.4
Weighted average period of recognition (years)		1 year 8 months 12 days
Total fair value of stock options vested \| $		$ 0.8	1.0	0.9
Restricted stock units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average period of recognition (years)		1 year 9 months 14 days
Unrecognized compensation cost \| $		$ 5.7
Restricted stock units (RSUs) \| Director
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)		7,584
Restricted stock units (RSUs) \| Director \| Selling, general and administrative expenses
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based compensation cost \| $		$ 0.2	0.2	0.2
2010 Long-term Stock Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expiration period (years)		10 years
Number of shares authorized for issuance (in shares)		7,500,000
2010 Long-term Stock Incentive Plan \| Stock option and restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares granted per calendar year in total, maximum (in shares)		1,500,000
2010 Long-term Stock Incentive Plan \| Employee stock option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of options outstanding (in shares)		133,603
2010 Long-term Stock Incentive Plan \| Restricted stock units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock outstanding (in shares)		0
2020 Omnibus Stock Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expiration period (years)		10 years
Number of shares authorized for issuance (in shares)		7,500,000
Cash performance awards \| $		$ 10.0
2020 Omnibus Stock Incentive Plan \| Employee stock option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares granted per calendar year in total, maximum (in shares)		1,500,000
Number of options outstanding (in shares)		251,532
2020 Omnibus Stock Incentive Plan \| Restricted stock units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock outstanding (in shares)		459,148
2020 Omnibus Stock Incentive Plan \| Restricted stock units (RSUs) \| Director
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock outstanding (in shares)		13,320
2018 Employee Stock Purchase Plan \| Employee stock option \| Selling, general and administrative expenses
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based payment arrangement, expense \| $		$ 0.6	$ 0.6	$ 0.4
2018 Employee Stock Purchase Plan \| Employee stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares reserved for issuance (in shares)	500,000	113,717
Stock plan offering period (months)	6 months
Employee stock purchase plan, maximum shares available to purchase (in shares)	10,000
Employee stock purchase plan, purchase price of stock, percent	85.00%
Stock issued during period under ESPP (in shares)		69,992	55,181	58,863
Average purchase price of shares issues under ESPP (in dollars per share) \| $ / shares		$ 21.98	$ 27.83	$ 23.83
Continuing operations \| Restricted stock units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based compensation cost \| $		$ 6.3	$ 1.7	$ 1.7

GLOBAL INDUSTRIAL Co 10-K