Equity details textual (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2024	Dec. 31, 2023	Sep. 30, 2024	Jun. 30, 2024	Sep. 30, 2023	Jun. 30, 2023
Equity [Abstract]
Dividends per share	$ 0.20	$ 0.20	$ 0.4	$ 0.4
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	$ 1,260,101	$ 1,328,104	$ 1,260,101	$ 1,328,104	$ 1,317,963	$ 1,288,599	$ 1,298,751	$ 1,314,168
Net income	19,037	24,328	42,503	54,697
Other comprehensive income (loss), net of tax	(51,268)	30,859	(16,927)	13,050
Stock Issued During Period, Value, Dividend Reinvestment Plan	42	45	85	90
Stock Issued During Period, Value, Employee Benefit Plan	4,925	5,059	7,051	6,697
Stock Repurchased During Period, Value	(15,032)	(15,029)	(30,062)	(28,754)
Dividends, Common Stock, Cash	(15,566)	(15,909)	(31,148)	(31,844)
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	1,260,101	1,328,104	1,260,101	1,328,104	1,317,963	1,288,599	1,298,751	1,314,168
Net income	19,037	24,328	42,503	54,697
Other comprehensive income (loss), net of tax	(51,268)	30,859	(16,927)	13,050
Stock Issued During Period, Value, Dividend Reinvestment Plan	42	45	85	90
Stock Issued During Period, Value, Employee Benefit Plan	4,925	5,059	7,051	6,697
Stock Repurchased During Period, Value	15,032	15,029	30,062	28,754
Dividends, Common Stock, Cash	$ 15,566	$ 15,909	$ 31,148	$ 31,844
Dividends per share	$ 0.20	$ 0.20	$ 0.4	$ 0.4
Common Stock [Member]
Equity [Abstract]
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	$ 96,661	$ 99,071	$ 96,661	$ 99,071	97,145	97,361	99,773	99,794
Stock Issued During Period, Value, Dividend Reinvestment Plan	2	2	4	5
Stock Issued During Period, Value, Employee Benefit Plan	172	80	705	689
Stock Repurchased During Period, Value	(658)	(784)	(1,409)	(1,417)
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	96,661	99,071	96,661	99,071	97,145	97,361	99,773	99,794
Stock Issued During Period, Value, Dividend Reinvestment Plan	2	2	4	5
Stock Issued During Period, Value, Employee Benefit Plan	172	80	705	689
Stock Repurchased During Period, Value	658	784	1,409	1,417
Additional Paid-in Capital [Member]
Equity [Abstract]
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	394,394	444,162	394,394	444,162	403,975	416,620	453,385	465,406
Stock Issued During Period, Value, Dividend Reinvestment Plan	40	43	81	85
Stock Issued During Period, Value, Employee Benefit Plan	4,753	4,979	6,346	6,008
Stock Repurchased During Period, Value	(14,374)	(14,245)	(28,653)	(27,337)
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	394,394	444,162	394,394	444,162	403,975	416,620	453,385	465,406
Stock Issued During Period, Value, Dividend Reinvestment Plan	40	43	81	85
Stock Issued During Period, Value, Employee Benefit Plan	4,753	4,979	6,346	6,008
Stock Repurchased During Period, Value	14,374	14,245	28,653	27,337
Retained Earnings [Member]
Equity [Abstract]
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	1,179,385	1,145,911	1,179,385	1,145,911	1,177,023	1,170,482	1,138,712	1,124,590
Net income	17,928	23,108	40,051	53,165
Dividends, Common Stock, Cash	(15,566)	(15,909)	(31,148)	(31,844)
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	1,179,385	1,145,911	1,179,385	1,145,911	1,177,023	1,170,482	1,138,712	1,124,590
Net income	17,928	23,108	40,051	53,165
Dividends, Common Stock, Cash	15,566	15,909	31,148	31,844
AOCI Attributable to Parent [Member]
Equity [Abstract]
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	(450,460)	(401,321)	(450,460)	(401,321)	(400,970)	(434,588)	(431,512)	(414,343)
Other comprehensive income (loss), net of tax	(49,490)	30,191	(15,872)	13,022
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	(450,460)	(401,321)	(450,460)	(401,321)	(400,970)	(434,588)	(431,512)	(414,343)
Other comprehensive income (loss), net of tax	(49,490)	30,191	(15,872)	13,022
Noncontrolling Interest [Member]
Equity [Abstract]
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	40,121	40,281	40,121	40,281	40,790	38,724	38,393	38,721
Net income	1,109	1,220	2,452	1,532
Other comprehensive income (loss), net of tax	(1,778)	668	(1,055)	28
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	40,121	40,281	40,121	40,281	$ 40,790	$ 38,724	$ 38,393	$ 38,721
Net income	1,109	1,220	2,452	1,532
Other comprehensive income (loss), net of tax	$ (1,778)	$ 668	$ (1,055)	$ 28