Goodwill and intangible assets - Narrative (Details)	3 Months Ended
Sep. 30, 2020 USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
Intangible amortization expense	$ 81,703,000
Estimated amortization expense, year ending June 30, 2021	321,660,000
Estimated amortization expense, year ending June 30, 2022	306,295,000
Estimated amortization expense, year ending June 30, 2023	296,282,000
Estimated amortization expense, year ending June 30, 2024	286,998,000
Estimated amortization expense, year ending June 30, 2025	272,899,000
Intangible assets impairment	$ 0

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
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Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

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Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in remainder of current fiscal year.

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Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of a finite-lived intangible asset to fair value.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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