INCOME TAXES: Additional Information (Details) $ in Millions	12 Months Ended
Jun. 30, 2018 USD ($)
Income Tax Disclosure [Abstract]
Provisional net tax benefit	$ 68.1

Amount of reasonable estimate for income tax expense (benefit) from effect of Tax Cuts and Jobs Act of 2017 for which accounting for tax effect is incomplete.

No definition available.

Name:	rgs_TaxCutsAndJobsActOf2017IncompleteAccountingProvisionalIncomeTaxExpenseBenefit
Namespace Prefix:	rgs_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration