Long-term Debt - Narrative (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Mar. 31, 2021	Mar. 31, 2021	Mar. 31, 2020
Debt Instrument [Line Items]
Loss on extinguishment of debt		$ 11.9	$ 0.0
Senior Notes \| 6.875% senior notes, due February 1, 2026
Debt Instrument [Line Items]
Debt repurchased amount	$ 250.0	$ 250.0
Loss on extinguishment of debt	11.9
Premium paid on repurchase of debt	$ 8.6

Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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