No definition available.

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Represents the high end of the range of average state tax rates during the period.

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No definition available.

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- Definition

Represents the low end of the range of average state tax rates during the period.

+ References

No definition available.

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- Definition

Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to the alternative fuel tax credit.

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No definition available.

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Amount of reasonable estimate for income tax expense (benefit) from effect of Tax Cuts and Jobs Act of 2017 attributable to fiscal year rather than calendar year federal income tax filing for which accounting for tax effect is incomplete.

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No definition available.

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Amount of income tax benefit for remeasurement of deferred tax liability from change in tax rate pursuant to Tax Cuts and Jobs Act.

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INCOME TAXES (Tax Reform Act) (Details) - USD ($) $ in Millions	2 Months Ended	3 Months Ended			4 Months Ended	6 Months Ended		12 Months Ended
	Feb. 28, 2018	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2018	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2017
Impact of Tax Reform Act
Statutory federal rate (as a percent)	32.74%		21.00%		21.00%	21.00%	21.00%	35.00%
Reduction of deferred tax liabilities due to Tax Reform Act				$ 0.1			$ 2.6	$ 24.5
State tax, low end of range of rate (as a percent)						6.00%
State tax, high end of range of rate (as a percent)						6.50%
Effective tax rate (as a percent)		27.40%		(68.00%)		27.10%	(15.00%)
Provisional reduction in current income tax expense due Tax Reform Act reflecting use of fiscal year rather than calendar year federal income tax filing							$ 0.1	1.3
Alternative fuel tax credit								$ 1.2