Goodwill and intangible assets - Changes in carrying amount of goodwill (Details) $ in Thousands	6 Months Ended
Dec. 31, 2019 USD ($)
Goodwill [Roll Forward]
Beginning balance	$ 5,453,805
Acquisitions	2,483,011
Foreign currency translation and other	18,354
Ending balance	7,955,170
Diversified Industrial Segment
Goodwill [Roll Forward]
Beginning balance	5,355,165
Acquisitions	1,978,234
Foreign currency translation and other	18,354
Ending balance	7,351,753
Aerospace Systems Segment
Goodwill [Roll Forward]
Beginning balance	98,640
Acquisitions	504,777
Foreign currency translation and other	0
Ending balance	$ 603,417

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.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=77989000&loc=SL49117168-202975

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Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
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Amount of increase (decrease) from adjustments after acquisition date under purchase accounting of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 25
-Paragraph 16
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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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