SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES AND RECENTLY ISSUED AND RECENTLY ADOPTED ACCOUNTING PRONOUNCEMENTS (Tables)

12 Months Ended

Jun. 30, 2018

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES AND RECENTLY ISSUED AND RECENTLY ADOPTED ACCOUNTING PRONOUNCEMENTS

Schedule of geographical distribution of long-lived assets

	As of June 30, 2018								As of June 30, 2017
							Total stream								Total stream
	Stream		Royalty				and royalty		Stream		Royalty				and royalty
	interest		interest		Impairments		interests, net		interest		interest		Impairments		interests, net
Canada	$	809,500	$	214,562	$	(284)	$	1,023,778	$	852,035	$	221,618	$	—	$	1,073,653
Dominican Republic		495,460		—		—		495,460		543,256		—		—		543,256
Chile		328,331		453,306		(239,080)		542,557		348,778		453,369		—		802,147
Africa		104,874		502		—		105,376		123,760		572		—		124,332
Mexico		—		93,277		—		93,277		—		105,889		—		105,889
United States		—		165,543		—		165,543		—		168,378		—		168,378
Australia		—		34,254		—		34,254		—		37,409		—		37,409
Other		12,039		28,833		—		40,872		12,030		25,162		—		37,192
Total	$	1,750,204	$	990,277	$	(239,364)	$	2,501,117	$	1,879,859	$	1,012,397	$	—	$	2,892,256

Schedule of revenue, cost of sales and net revenue by reportable segment

	Year Ended June 30, 2018						Year Ended June 30, 2017
	Revenue		Cost of sales		Net revenue		Revenue		Cost of sales		Net revenue
Streams:
Canada	$	142,244	$	40,766	$	101,478	$	136,736	$	45,954	$	90,782
Dominican Republic		95,055		28,496		66,559		91,589		27,191		64,398
Chile		57,413		8,614		48,799		60,251		9,037		51,214
Africa		29,804		5,963		23,841		25,435		5,083		20,352
Total streams	$	324,516	$	83,839	$	240,677	$	314,011	$	87,265	$	226,746
Royalties:
Mexico	$	42,959	$	—	$	42,959	$	41,945	$	—	$	41,945
United States		39,496		—		39,496		35,282		—		35,282
Canada		24,254		—		24,254		23,208		—		23,208
Australia		13,710		—		13,710		12,943		—		12,943
Africa		2,098		—		2,098		3,131		—		3,131
Chile		473		—		473		1,648		—		1,648
Other		11,536		—		11,536		8,646		—		8,646
Total royalties	$	134,526	$	—	$	134,526	$	126,803	$	—	$	126,803
Total streams and royalties	$	459,042	$	83,839	$	375,203	$	440,814	$	87,265	$	353,549

	Fiscal Year Ended June 30, 2017						Fiscal Year Ended June 30, 2016
	Revenue		Cost of sales		Net revenue		Revenue		Cost of sales		Net revenue
Streams:
Canada	$	136,736	$	45,954	$	90,782	$	125,755	$	47,417	$	78,338
Dominican Republic		91,589		27,191		64,398		39,684		11,625		28,059
Chile		60,251		9,037		51,214		49,243		7,280		41,963
Africa		25,435		5,083		20,352		23,346		4,657		18,689
Total streams	$	314,011	$	87,265	$	226,746	$	238,028	$	70,979	$	167,049
Royalties:
Mexico	$	41,945	$	—	$	41,945	$	35,267	$	—	$	35,267
United States		35,282		—		35,282		35,483		—		35,483
Canada		23,208		—		23,208		30,676		—		30,676
Australia		12,943		—		12,943		10,462		—		10,462
Africa		3,131		—		3,131		1,868		—		1,868
Chile		1,648		—		1,648		84		—		84
Other		8,646		—		8,646		7,922		—		7,922
Total royalties	$	126,803	$	—	$	126,803	$	121,762	$	—	$	121,762
Total streams and royalties	$	440,814	$	87,265	$	353,549	$	359,790	$	70,979	$	288,811