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Goodwill and intangible assets (Tables)
 3 Months Ended
Sep. 30, 2021
Goodwill and Intangible Assets Disclosure [Abstract]  
Changes in carrying amount of goodwill The changes in the carrying amount of goodwill for the three months ended September 30, 2021 are as follows:
Diversified Industrial
Segment		Aerospace
Systems
Segment		Total
Balance at June 30, 2021$7,457,309 $602,378 $8,059,687 
Foreign currency translation and other(50,340)(7)(50,347)
Balance at September 30, 2021$7,406,969 $602,371 $8,009,340 
Intangible assets by major category The following summarizes the gross carrying value and accumulated amortization for each major category of intangible assets:
 September 30, 2021June 30, 2021
 Gross Carrying
Amount		Accumulated
Amortization		Gross Carrying
Amount		Accumulated
Amortization
Patents and technology$997,890 $227,415 $999,952 $216,314 
Trademarks757,627 338,001 762,130 331,905 
Customer lists and other3,847,159 1,610,720 3,869,772 1,563,838 
Total$5,602,676 $2,176,136 $5,631,854 $2,112,057