Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Cash flows from operating activities:
Net (loss) income	$ (143,359)	$ 75,588
Adjustments to reconcile net (loss) income to net cash provided by operating activities:
Depreciation, depletion and amortization	121,380	119,785
Amortization of debt discount and issuance costs	11,200	10,202
Non-cash employee stock compensation expense	5,958	6,758
Impairment of royalty interests	239,364
Deferred tax benefit	(31,583)	(6,266)
Other	(199)	(4,638)
Changes in assets and liabilities:
Royalty receivables	(909)	(1,367)
Stream inventory	(4,816)	2,865
Income tax receivable	21,020	(6,117)
Prepaid expenses and other assets	3,224	(743)
Accounts payable	(939)	(1,641)
Income tax payable	6,779	(422)
Withholding taxes payable	227	(5,449)
Uncertain tax positions	10,989	7,341
Other liabilities	13,473	5,036
Net cash provided by operating activities	251,809	200,932
Cash flows from investing activities:
Acquisition of stream and royalty interests	(1,012)	(203,721)
Other	(1,251)	1,503
Net cash used in investing activities	(2,263)	(202,218)
Cash flows from financing activities:
Borrowings from revolving credit facility		70,000
Repayment of revolving credit facility	(175,000)	(45,000)
Net payments from issuance of common stock	(3,502)	(2,618)
Common stock dividends	(47,755)	(45,715)
Purchase of additional royalty interest from non-controlling interest		(1,462)
Other	240	(2,462)
Net cash used in financing activities	(226,017)	(27,257)
Net increase (decrease) in cash and equivalents	23,529	(28,543)
Cash and equivalents at beginning of period	85,847	116,633
Cash and equivalents at end of period	$ 109,376	$ 88,090