Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Cash flows from operating activities:
Net income	$ 26,059	$ 52,852
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, depletion and amortization	45,071	42,620
Non-cash employee stock compensation expense	1,759	3,900
Gain on distribution to non-controlling interest		(88)
Amortization of debt discount	4,720	4,448
Tax benefit of stock-based compensation exercises	(208)	(1,214)
Deferred tax benefit	(8,038)	(2,166)
Changes in assets and liabilities:
Royalty receivables	7,330	(16,808)
Prepaid expenses and other assets	13,001	(19,659)
Accounts payable	(811)	(661)
Foreign withholding taxes payable	(10,108)	(10)
Income taxes (receivable) payable	(7,626)	1,827
Other liabilities	(943)	(616)
Net cash provided by operating activities	70,206	64,425
Cash flows from investing activities:
Acquisition of royalty and stream interests	(48,089)	(215,032)
Proceeds on sale of inventory - restricted		118
Other	(54)	(38)
Net cash used in investing activities	(48,143)	(214,952)
Cash flows from financing activities:
Net proceeds from issuance of common stock	94	473,776
Common stock dividends	(26,032)	(17,915)
Distribution to non-controlling interests	(1,079)	(1,273)
Tax expense of stock-based compensation exercises	208	1,214
Net cash (used in) provided by financing activities	(26,809)	455,802
Net (decrease) increase in cash and equivalents	(4,746)	305,275
Cash and equivalents at beginning of period	664,035	375,456
Cash and equivalents at end of period	$ 659,289	$ 680,731