INCOME TAXES: (Tables)

9 Months Ended

Mar. 31, 2019

Income Tax Disclosure [Abstract]

Summary of income tax benefit (expense) and corresponding effective tax rates

A summary of income tax (expense) benefit and corresponding effective tax rates is as follows:

	For the Three Months Ended March 31,						For the Nine Months Ended March 31,
	2019			2018			2019			2018
	(Dollars in thousands)
Income tax (expense) benefit	$	(3,248	)	$	2,609		$	(2,988	)	$	77,875
Effective tax rate	(28.1		%)	(267.3		%)	(25.2		%)	327.9		%