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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Earnings per Share (Detail) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 3 Months Ended 12 Months Ended
Jun. 30, 2022
Mar. 31, 2022
Dec. 31, 2021
Sep. 30, 2021
Jun. 30, 2021
Mar. 31, 2021
Dec. 31, 2020
Sep. 30, 2020
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2020
Dilutive effect of the Notes                 0 0 0
Lease, Practical Expedient, Use of Hindsight [true false]                 true    
Foreign Currency Translation                      
Transaction gain (loss)                 $ 600 $ 1,300 $ 3,400
Per Share Computations                      
Net income available to common stockholders $ 33,763 $ 42,735 $ 19,797 $ 19,052 $ 25,894 $ 18,773 $ 20,038 $ 9,344 $ 115,347 $ 74,049 $ 75,252
Weighted average shares outstanding-basic                 17,551 17,968 18,191
Dilutive effect of equity awards                 319 420 409
Weighted average shares outstanding-diluted                 17,870 18,388 18,600
Basic earnings per share $ 1.99 $ 2.45 $ 1.11 $ 1.06 $ 1.44 $ 1.04 $ 1.12 $ 0.52 $ 6.57 $ 4.12 $ 4.14
Diluted earnings per share $ 1.94 $ 2.41 $ 1.09 $ 1.04 $ 1.40 $ 1.03 $ 1.10 $ 0.51 $ 6.45 $ 4.03 $ 4.05
Weighted average shares excluded from diluted earnings per share due to their anti-dilutive effect                 47 47 120
Warranty Provision                      
Balance at beginning of period       $ 19,736       $ 20,825 $ 19,736 $ 20,825 $ 21,724
Warranty claims provided for/assumed in acquisition                 3,474 5,419 7,551
Settlements made                 (9,863) (6,508) (8,450)
Balance at end of period $ 13,347       $ 19,736       $ 13,347 $ 19,736 $ 20,825
1.25% Convertible Senior Notes Due 2022                      
Per Share Computations                      
Interest rate (as a percentage) 1.25%               1.25%    
Conversion price $ 107.46               $ 107.46