STOCK-BASED COMPENSATION (Details) - USD ($)		3 Months Ended				9 Months Ended
		Sep. 30, 2025	Mar. 31, 2025	Sep. 30, 2024	Mar. 31, 2024	Sep. 30, 2025	Sep. 30, 2024	Jun. 30, 2025	Dec. 31, 2024
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Payment Arrangement, Expense						$ 9,165,000	$ 8,277,000
Shares withheld for tax obligations, vesting of restricted stock			24,745		33,381
Award Recipient Type Director [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Payment Arrangement, Expense		$ 211,000		$ 211,000		609,000	554,000
Restricted stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair value of shares vested as of the vesting date						$ 10,819,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number		89,386				89,386		75,136	89,173
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value (in dollars per share)		$ 174.98				$ 174.98		$ 176.23	$ 160.76
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period	[1],[2]	14,250				65,104
Grant date fair value of shares issued (in dollars per share)	[1],[2]	$ 168.36				$ 183.22
Forfeited (in shares)		0				0
Forfeited (per share)		$ 0				$ 0
Vested (in shares)		0				(64,891)
Vested (per share)		$ 0				$ 163.70
Fair value of shares granted, as of the grant dates						$ 11,928,000
Restricted stock [Member] | Award Recipient Type Employee [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Payment Arrangement, Expense		$ 2,870,000		2,801,000		9,931,000	9,249,000
Stock-based compensation costs capitalized as development costs		$ 451,000		$ 486,000		$ 1,375,000	$ 1,526,000

[1] Does not include restricted shares subject to open performance periods. For the long-term equity compensation awards established in 2023 and 2024 and the long-term and annual equity compensation awards established in 2025, the number of shares to be earned depends on the satisfaction of performance-based or market-based conditions, which may range from zero to 155,875.

[2] Includes restricted shares granted during the year without performance or market conditions. Also includes restricted shares granted in previous years, for long-term and annual equity compensation awards for the Company's executive officers, for which performance-based or market-based conditions have been satisfied and the resulting number of shares have been determined during the year.