Goodwill and intangible assets (Tables)

3 Months Ended

Sep. 30, 2019

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of goodwill

The changes in the carrying amount of goodwill for the three months ended September 30, 2019 are as follows:

	Diversified Industrial Segment			Aerospace Systems Segment			Total
Balance at June 30, 2019	$	5,355,165		$	98,640		$	5,453,805
Acquisition	—			428,488			428,488
Foreign currency translation and other	(63,668		)	(12		)	(63,680		)
Balance at September 30, 2019	$	5,291,497		$	527,116		$	5,818,613

Schedule of intangible assets by major category

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

	September 30, 2019				June 30, 2019
	Gross Carrying Amount		Accumulated Amortization		Gross Carrying Amount		Accumulated Amortization
Patents and technology	$	600,411	$	132,896	$	265,644	$	130,233
Trademarks	627,253		255,674		542,573		252,388
Customer lists and other	2,957,091		1,102,429		2,435,461		1,077,780
Total	$	4,184,755	$	1,490,999	$	3,243,678	$	1,460,401