Quarterly report pursuant to Section 13 or 15(d)

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

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Supplemental Equity and Accumulated Other Comprehensive Income (Loss) - Consolidated Changes in Equity (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Mar. 31, 2022
Dec. 31, 2021
Sep. 30, 2021
Mar. 31, 2021
Dec. 31, 2020
Sep. 30, 2020
Mar. 31, 2022
Mar. 31, 2021
Balances $ 1,702,531 $ 1,646,955 $ 1,571,234 $ 1,530,854 $ 1,439,285 $ 1,381,192 $ 1,571,234 $ 1,381,192
Balances (in shares)     38,955,484       38,955,484  
Net earnings, including noncontrolling interest 60,144 72,059 $ 68,981 45,402 46,144 33,395 $ 201,184 124,941
Other comprehensive income (loss) 4,328 4,808 (6,964) 146 18,987 14,057 $ 2,172 $ 33,190
Common stock issued for exercise of options 10,495 18,605 22,867 16,994 14,268 13,728    
Common stock issued for exercise of options (in shares)             555,103 505,137
Common stock issued for restricted stock awards (159)   (9,765) (1,801)   (4,890)    
Cash dividends (12,577) (12,576) (12,493) (12,446) (12,392) (12,336)    
Stock-based compensation expense 8,043 13,701 11,396 10,232 15,471 12,667    
Common stock issued to employee stock purchase plan 1,330 6 1,358 1,328   1,463    
Employee stock purchase plan expense 25 267 341 411 106 286    
Share repurchases (60,838) (41,294)   (43,178)        
Non-controlling interest in Eminence         8,985      
Balances $ 1,713,322 1,702,531 1,646,955 1,547,942 1,530,854 1,439,285 $ 1,713,322 $ 1,547,942
Balances (in shares) 39,263,444           39,263,444  
Cumulative Effect, Period of Adoption, Adjustment [Member]                
Balances         (276)      
Balances           (276)    
Common Stock [Member]                
Balances $ 393 $ 393 $ 390 $ 388 $ 386 $ 385 $ 390 $ 385
Balances (in shares) 39,319,000 39,273,000 38,955,000 38,765,000 38,601,000 38,453,000 38,955,000 38,453,000
Common stock issued for exercise of options $ 1 $ 1 $ 3 $ 2 $ 2 $ 1    
Common stock issued for exercise of options (in shares) 84,000 134,000 295,000 195,000 161,000 117,000    
Common stock issued for restricted stock awards     $ 0 $ 0 $ 0 $ 0    
Common stock issued for restricted stock awards (in shares) 1,000 1,000 20,000 10,000 3,000 25,000    
Common stock issued to employee stock purchase plan     $ 0 $ 0   $ 0    
Common stock issued to employee stock purchase plan (in shares) 4,000   3,000 4,000   6,000    
Share repurchases $ (1) $ (1)   $ (1)        
Share repurchases (in shares) (145,000) (89,000)   (120,000)        
Balances $ 393 $ 393 $ 393 $ 389 $ 388 $ 386 $ 393 $ 389
Balances (in shares) 39,263,000 39,319,000 39,273,000 38,854,000 38,765,000 38,601,000 39,263,000 38,854,000
Additional Paid-in Capital [Member]                
Balances $ 616,429 $ 583,851 $ 534,411 $ 481,004 $ 448,679 $ 420,536 $ 534,411 $ 420,536
Common stock issued for exercise of options 10,494 18,604 36,345 21,324 16,748 13,727    
Common stock issued for restricted stock awards     0 0 0 0    
Stock-based compensation expense 8,043 13,701 11,396 10,232 15,471 12,667    
Common stock issued to employee stock purchase plan 1,330 6 1,358 1,328   1,463    
Employee stock purchase plan expense 25 267 341 411 106 286    
Balances 636,321 616,429 583,851 514,299 481,004 448,679 636,321 514,299
Retained Earnings [Member]                
Balances 1,145,641 1,119,337 1,085,461 1,104,762 1,073,362 1,057,470 1,085,461 1,057,470
Net earnings, including noncontrolling interest 60,739 80,173 69,615 45,782 46,274 33,395    
Common stock issued for exercise of options     (13,481) (4,332) (2,482)      
Common stock issued for restricted stock awards (159)   (9,765) (1,801) 0 (4,890)    
Cash dividends (12,577) (12,576) (12,493) (12,446) (12,392) (12,336)    
Share repurchases (60,837) (41,293)   (43,177)        
Balances 1,132,807 1,145,641 1,119,337 1,088,788 1,104,762 1,073,362 1,132,807 1,088,788
Retained Earnings [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]                
Balances         (276)      
Balances           (276)    
AOCI Attributable to Parent [Member]                
Balances (59,474) (64,216) (57,291) (64,238) (83,142) (97,199) (57,291) (97,199)
Other comprehensive income (loss) 4,329 4,742 (6,925) 215 18,904 14,057    
Balances (55,145) (59,474) (64,216) (64,023) (64,238) $ (83,142) (55,145) (64,023)
Noncontrolling Interest [Member]                
Balances (458) 7,590 8,263 8,938     8,263  
Net earnings, including noncontrolling interest (595) (8,114) (634) (380) (130)      
Other comprehensive income (loss) (1) 66 (39) (69) 83      
Non-controlling interest in Eminence         8,985      
Balances $ (1,054) $ (458) $ 7,590 $ 8,489 $ 8,938   $ (1,054) $ 8,489