Restatement of Previously Issued Financial Statements (Condensed consolidated statements of cash flows from operating activities, including balances originally reported, corrections and restated balances) (Detail 3) - USD ($) $ in Thousands	3 Months Ended			9 Months Ended
	Mar. 31, 2018		Mar. 31, 2017	Mar. 31, 2018		Mar. 31, 2017
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net loss	$ (267,985)	[1]	$ 5,588	$ (281,395)	[1]	$ 9,409
Deferred income taxes				11,714	[1]	627
Accrued expenses and other liabilities				9,728	[1]	(4,702)
Net cash provided by operating activities				56,415	[1]	$ 31,551
As Reported
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net loss	(196,635)			(210,045)
Deferred income taxes				(80,207)
Accrued expenses and other liabilities				30,299
Net cash provided by operating activities				56,415
Adjustment
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net loss	$ (71,350)			(71,350)
Deferred income taxes				91,921
Accrued expenses and other liabilities				(20,571)
Net cash provided by operating activities				$ 0

[1] (as restated)