Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017
Cash flows from operating activities:
Net income (loss)	$ 89,079	$ (119,351)	$ 92,425
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation, depletion and amortization	163,056	163,696	159,636
Amortization of debt discount and issuance costs	15,288	15,046	13,825
Non-cash employee stock compensation expense	6,617	8,279	9,983
Fair value changes in equity securities	6,800
Deferred tax benefit	(1,745)	(32,843)	1,556
Impairment of royalty interests		239,364
Other	(2)	(197)	(4,874)
Changes in assets and liabilities:
Royalty receivables	5,623	530	(6,883)
Stream inventory	(2,069)	(1,428)	1,606
Income tax receivable	(2,663)	22,130	(13,056)
Prepaid expenses and other assets	2,793	2,813	(1,691)
Accounts payable	(6,426)	5,173	(206)
Income tax payable	(11,281)	12,601	2,475
Withholding taxes payable	(2,160)	(171)	1,411
Uncertain tax positions	3,180	7,767	8,631
Other liabilities	(12,924)	5,415	2,015
Net cash provided by operating activities	253,166	328,824	266,853
Cash flows from investing activities:
Acquisition of stream and royalty interests	(1,055)	(11,812)	(203,721)
Repayment of Golden Star term loan		20,000
Purchase of equity securities	(3,573)	(17,869)
Other	(967)	(909)	3,605
Net cash used in investing activities	(5,595)	(10,590)	(200,116)
Cash flows from financing activities:
Repayment of debt	(370,000)	(250,000)	(95,000)
Borrowings from revolving credit facility	220,000		70,000
Net payments from issuance of common stock	(1,595)	(4,042)	(2,426)
Common stock dividends	(67,477)	(64,118)	(61,396)
Debt issuance costs	(1,761)	(180)	(3,340)
Contributions from non-controlling interest	4,140
Purchase of additional royalty interest from non-controlling interest			(2,518)
Other	(153)	3,009	(2,843)
Net cash used in financing activities	(216,846)	(315,331)	(97,523)
Net increase (decrease) in cash and equivalents	30,725	2,903	(30,786)
Cash and equivalents at beginning of period	88,750	85,847	116,633
Cash and equivalents at end of period	$ 119,475	$ 88,750	$ 85,847