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STOCK PLANS - Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023	Apr. 19, 2023
Stock Plans
Common shares available for future grant under all plans (in shares)	1,828,205
Total stock-based compensation expense	$ 20,526	$ 24,000	$ 26,223
Tax benefit related to stock-based compensation recognized in the period	5,139	6,009	6,711
Total unrecognized stock-based compensation expense related to nonvested stock options, restricted shares and restricted stock units	$ 16,927
Weighted average period of recognition of unrecognized stock-based compensation expense (in months)	1 year 9 months 18 days
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested in Period, Fair Value	$ 2,931	8,367	3,684
Stock options
Stock Plans
Award expiration (in years)	10 years
Award vesting period (in years)	3 years
Aggregate intrinsic value of awards outstanding	$ 55,960
Aggregate intrinsic value of awards exercisable	53,811
Total intrinsic value of awards exercised	$ 16,162	$ 47,929	$ 35,414
Restricted Stock Units
Stock Plans
Remaining weighted average life of non-vested restricted awards (in years)	1 year 10 months 24 days
PSUs
Stock Plans
Award vesting period (in years)	3 years
Shares granted	48,056
Shares granted (in dollars per share)	$ 213.01
Remaining weighted average life of non-vested restricted awards (in years)	1 year 7 months 6 days
RSU and PSU
Stock Plans
Shares granted	118,411
Shares granted (in dollars per share)	$ 205.23
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number	241,774	293,418
1995 Lincoln Stock Purchase Plan
Stock Plans
Maximum additional number of the Company's common shares that may be granted (in shares)	800,000
Shares purchased (in shares)	0	0	0
2023 Employee Plan
Stock Plans
Maximum additional number of the Company's common shares that may be granted (in shares)				2,025,000
2023 Employee Plan | Restricted Stock Units
Stock Plans
Shares granted	70,355
2023 Employee Plan | PSUs
Stock Plans
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number	73,566
2023 Director Plan
Stock Plans
Maximum additional number of the Company's common shares that may be granted (in shares)				200,000
2005 Plan | RSU and PSU
Stock Plans
Deferred RSUs and PSUs (in shares)	28,634
Deferred RSUs and PSUs Outstanding (in shares)	111,088
Minimum | Restricted Stock Units
Stock Plans
Award vesting period (in years)	3 years
Maximum | 1995 Lincoln Stock Purchase Plan
Stock Plans
Dollar value of shares that each employee has the ability to purchase on the open market, on a commission-free basis annually under the plan	$ 10

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