Goodwill and intangible assets (Tables)

6 Months Ended

Dec. 31, 2020

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of changes in carrying amount of goodwill

The changes in the carrying amount of goodwill for the six months ended December 31, 2020 are as follows:

	Diversified Industrial Segment		Aerospace Systems Segment		Total
Balance at June 30, 2020	$	7,267,573	$	602,362	$	7,869,935
Acquisitions	3,738		—		3,738
Foreign currency translation and other	227,317		26		227,343
Balance at December 31, 2020	$	7,498,628	$	602,388	$	8,101,016

Schedule of intangible assets by major category

The following summarizes the gross carrying value and accumulated amortization for each major category of intangible assets:

	December 31, 2020				June 30, 2020
	Gross Carrying Amount		Accumulated Amortization		Gross Carrying Amount		Accumulated Amortization
Patents and technology	$	1,000,903	$	191,931	$	991,596	$	162,528
Trademarks	764,741		315,029		748,326		285,197
Customer lists and other	3,885,876		1,449,366		3,791,505		1,284,789
Total	$	5,651,520	$	1,956,326	$	5,531,427	$	1,732,514