Consolidated Statements of Changes in Equity (Unaudited) - USD ($) $ in Thousands	Total	Common Stock	Additional Capital	Retained Earnings	Accumulated Other Comprehensive (Loss) Income	Treasury Stock
Beginning balance, (in shares) at Dec. 31, 2023		5,173,000
Beginning balance, value at Dec. 31, 2023	$ 237,657	$ 5,173	$ 34,315	$ 182,336	$ 16,201	$ (368)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	24,489			24,489
Dividends paid	(46,176)			(46,176)
Change in fair value of interest rate derivatives	(3,900)				(3,900)
Deferred stock unit grants	450		450
Ending balance, (in shares) at Jun. 30, 2024		5,173,000
Ending balance, value at Jun. 30, 2024	212,520	$ 5,173	34,765	160,649	12,301	(368)
Beginning balance, (in shares) at Mar. 31, 2024		5,173,000
Beginning balance, value at Mar. 31, 2024	230,138	$ 5,173	34,315	175,357	15,661	(368)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	8,380			8,380
Dividends paid	(23,088)			(23,088)
Change in fair value of interest rate derivatives	(3,360)				(3,360)
Deferred stock unit grants	450		450
Ending balance, (in shares) at Jun. 30, 2024		5,173,000
Ending balance, value at Jun. 30, 2024	$ 212,520	$ 5,173	34,765	160,649	12,301	(368)
Beginning balance, (in shares) at Dec. 31, 2024	5,173,450	5,173,000
Beginning balance, value at Dec. 31, 2024	$ 176,859	$ 5,173	34,765	133,402	3,887	(368)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	18,432			18,432
Dividends paid	(46,202)			(46,202)
Change in fair value of interest rate derivatives	(4,036)				(4,036)
Deferred stock unit grants	$ 394		394
Ending balance, (in shares) at Jun. 30, 2025	5,173,450	5,173,000
Ending balance, value at Jun. 30, 2025	$ 145,447	$ 5,173	35,159	105,632	(149)	(368)
Beginning balance, (in shares) at Mar. 31, 2025		5,173,000
Beginning balance, value at Mar. 31, 2025	163,089	$ 5,173	34,765	122,613	906	(368)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	6,120			6,120
Dividends paid	(23,101)			(23,101)
Change in fair value of interest rate derivatives	(1,055)				(1,055)
Deferred stock unit grants	$ 394		394
Ending balance, (in shares) at Jun. 30, 2025	5,173,450	5,173,000
Ending balance, value at Jun. 30, 2025	$ 145,447	$ 5,173	$ 35,159	$ 105,632	$ (149)	$ (368)

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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- Definition

Amount of equity (deficit) attributable to parent. Excludes temporary equity and equity attributable to noncontrolling interest.

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