Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2018
Cash flows from operating activities:
Net income (loss)	$ 196,250	$ 89,079	$ (119,351)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation, depletion and amortization	175,434	163,056	163,696
Amortization of debt discount and issuance costs	1,136	15,288	15,046
Non-cash employee stock compensation expense	9,116	6,617	8,279
Fair value changes in equity securities	(1,418)	6,800
Deferred tax benefit	(32,399)	(1,745)	(32,843)
Impairment of royalty interests	1,341		239,364
Other	(148)	(2)	(197)
Changes in assets and liabilities:
Royalty receivables	(6,957)	5,623	530
Stream inventory	(291)	(2,069)	(1,428)
Income tax receivable	268	(2,663)	22,130
Prepaid expenses and other assets	(7,828)	2,793	2,813
Accounts payable	(275)	(6,426)	5,173
Income tax payable	6,349	(11,281)	12,601
Uncertain tax positions	(11,146)	3,180	7,767
Other liabilities	11,320	(15,084)	5,244
Net cash provided by operating activities	340,752	253,166	328,824
Cash flows from investing activities:
Acquisition of stream and royalty interests	(155,985)	(1,055)	(11,812)
Repayment of Golden Star term loan			20,000
Purchase of equity securities	(461)	(3,573)	(17,869)
Other	3,587	(967)	(909)
Net cash used in investing activities	(152,859)	(5,595)	(10,590)
Cash flows from financing activities:
Repayment of debt	(115,000)	(370,000)	(250,000)
Borrowings from revolving credit facility	200,000	220,000
Net payments from issuance of common stock	(4,180)	(1,595)	(4,042)
Common stock dividends	(71,471)	(67,477)	(64,118)
Contributions from non-controlling interest	3,720	4,140
Other	(1,309)	(1,914)	2,829
Net cash provided by (used in) financing activities	11,760	(216,846)	(315,331)
Net increase (decrease) in cash and equivalents	199,653	30,725	2,903
Cash and equivalents at beginning of period	119,475	88,750	85,847
Cash and equivalents at end of period	$ 319,128	$ 119,475	$ 88,750