Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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Intrinsic value of outstanding award under share-based payment arrangement. Excludes share and unit options.

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Equity Equity Incentive Plan - Vesting (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended			9 Months Ended		12 Months Ended
	Mar. 31, 2020	Sep. 30, 2019	Mar. 31, 2019	Mar. 31, 2020	Mar. 31, 2019	Jun. 30, 2019
Employee and Non Employees Stock Option
Equity Transactions
Intrinsic value of options exercised				$ 0.0	$ 0.7
Stock based compensation expense	$ 0.0		$ 0.2	0.1	0.5
Restricted Stock
Equity Transactions
Unrecognized compensation	28.0			$ 28.0
Weighted average period for recognition of total unrecognized compensation expense related to unvested stock options granted				1 year 8 months 12 days
Stock based compensation expense	4.5		2.6	$ 12.9	9.5
Granted (in shares)				1,045,661
Granted (in dollars per share)				$ 27.12
Performance Share Units
Equity Transactions
Unrecognized compensation	8.7			$ 8.7
Weighted average period for recognition of total unrecognized compensation expense related to unvested stock options granted				1 year 6 months
Stock based compensation expense	1.5		1.3	$ 4.6	2.4
Granted (in shares)				14,199
Granted (in dollars per share)				$ 28.17
Performance Share Units \| Fiscal Year 2019 LTIP
Equity Transactions
Stock based compensation expense	0.0		$ 0.0	$ 0.0	$ 0.0
Granted (in shares)		278,135				278,135
Fair value		$ 8.3				$ 8.3
Granted (in dollars per share)		$ 29.95				$ 29.95
Performance Share Units \| Fiscal Year 2020 TRIP
Equity Transactions
Fair value	$ 12.3			$ 12.3
Performance Share Units \| Revenue \| Fiscal Year 2020 TRIP
Equity Transactions
Earned award vesting percentage	60.00%
Performance Share Units \| EBITDA \| Fiscal Year 2020 TRIP
Equity Transactions
Earned award vesting percentage	40.00%
Performance Shares Tranche #1 \| Fiscal Year 2019 LTIP
Equity Transactions
Earned award vesting percentage		45.00%				45.00%
Performance Shares Tranche #2 \| Fiscal Year 2019 LTIP
Equity Transactions
Earned award vesting percentage		25.00%				25.00%
Performance Shares Tranche #3 \| Fiscal Year 2019 LTIP
Equity Transactions
Earned award vesting percentage		30.00%				30.00%
Calendar Year 2021 \| Performance Shares Tranche #1 \| Fiscal Year 2020 TRIP
Equity Transactions
Earned award vesting percentage	70.00%
Calendar Year 2022 \| Performance Shares Tranche #2 \| Fiscal Year 2020 TRIP
Equity Transactions
Earned award vesting percentage	30.00%