Quarterly report pursuant to Section 13 or 15(d)

Supplemental Equity and Accumulated Other Comprehensive Income (loss) Information - Consolidated Changes in Equity (Details)

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Supplemental Equity and Accumulated Other Comprehensive Income (loss) Information - Consolidated Changes in Equity (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Dec. 31, 2024
Sep. 30, 2024
Dec. 31, 2023
Sep. 30, 2023
Dec. 31, 2024
Dec. 31, 2023
Balance $ 2,138,650 $ 2,068,850 $ 1,997,746 $ 1,966,516 $ 2,068,850 $ 1,966,516
Balances (in shares)   158,216,258     158,216,258  
Net earnings 34,890 $ 33,600 27,465 50,993 $ 68,490 $ 78,459
Other comprehensive income (loss) before reclassification (25,563) 18,229 14,355 (11,952)    
Share repurchases (75,628)   (80,042)      
Common stock issued for exercise of options 5,164 20,892 3,841 (2,577)    
Common stock issued for exercise of options (in shares)         800,000 1,200,000
Common stock issued for restricted stock awards (993) (2,644) 0 (4,767)    
Cash dividends (12,736) (12,688) (12,559) (12,654)    
Stock-based compensation expense 14,335 10,146 12,413 9,981    
Common stock issued to employee stock purchase plan   2,227   2,094    
Employee stock purchase plan expense 373 38 340 112    
Balance $ 2,078,492 2,138,650 1,963,559 1,997,746 $ 2,078,492 $ 1,963,559
Balances (in shares) 157,915,999       157,915,999  
Common Stock            
Balance $ 1,589 $ 1,582 $ 1,584 $ 1,576 $ 1,582 $ 1,576
Balances (in shares) 158,878,000 158,216,000 158,355,000 157,642,000 158,216,000 157,642,000
Share repurchases $ (11)   $ (14)      
Share repurchases (in shares) (1,118,000)   (1,397,000)      
Common stock issued for exercise of options $ 1 $ 6 $ 1 $ 6    
Common stock issued for exercise of options (in shares) 132,000 577,000 157,000 633,000    
Common stock issued for restricted stock awards $ 0 $ 1 $ 0 $ 1    
Common stock issued for restricted stock awards (in shares) 24,000 50,000 27,000 47,000    
Common stock issued to employee stock purchase plan   $ 0   $ 1    
Common stock issued to employee stock purchase plan (in shares)   35,000   33,000    
Balance $ 1,579 $ 1,589 $ 1,571 $ 1,584 $ 1,579 $ 1,571
Balances (in shares) 157,916,000 158,878,000 157,142,000 158,355,000 157,916,000 157,142,000
Additional Paid-in Capital            
Balance $ 855,973 $ 820,337 $ 746,606 $ 721,543 $ 820,337 $ 721,543
Common stock issued for exercise of options 5,183 23,224 4,914 12,877    
Common stock issued for restricted stock awards 0 1 0 0    
Stock-based compensation expense 14,335 10,146 12,413 9,981    
Common stock issued to employee stock purchase plan   2,227   2,093    
Employee stock purchase plan expense 373 38 340 112    
Balance 875,864 855,973 764,273 746,606 875,864 764,273
Retained Earnings            
Balance 1,341,175 1,325,247 1,327,572 1,309,461 1,325,247 1,309,461
Net earnings 34,890 33,600 27,465 50,993    
Share repurchases (75,617)   (80,028)      
Common stock issued for exercise of options (20) (2,338) (1,074) (15,460)    
Common stock issued for restricted stock awards (993) (2,646)   (4,768)    
Cash dividends (12,736) (12,688) (12,559) (12,654)    
Balance 1,286,699 1,341,175 1,261,376 1,327,572 1,286,699 1,261,376
Accumulated Other Comprehensive Income (Loss)            
Balance (60,087) (78,316) (78,016) (66,064) (78,316) (66,064)
Other comprehensive income (loss) before reclassification (25,563) 18,229 14,355 (11,952)    
Balance $ (85,650) $ (60,087) $ (63,661) $ (78,016) $ (85,650) $ (63,661)