Summary of Significant Accounting Policies - Goodwill (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
Mar. 31, 2020	Dec. 31, 2019	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2018
Goodwill and other intangible assets impairments	$ 15,600	$ 14,600	$ 30,227
Goodwill, Gross			1,081,452	$ 1,084,064	$ 1,085,855
Goodwill, Accumulated Impairment Loss			810,872	784,053	784,053
Goodwill			270,580	300,011	301,802
Goodwill, Period Increase (Decrease)			(2,612)	(1,791)
Industrial [Member]
Goodwill, Gross			407,784	409,912	411,458
Goodwill, Accumulated Impairment Loss			(137,204)	(137,204)	(137,204)
Goodwill			270,580	272,708	274,254
Goodwill, Period Increase (Decrease)			(2,128)	(1,546)
Infrastructure [Member]
Goodwill, Gross			633,211	633,211	633,211
Goodwill, Accumulated Impairment Loss			(633,211)	(633,211)	(633,211)
Goodwill			0	0	$ 0
Goodwill, Period Increase (Decrease)			$ 0	$ 0

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount before accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

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