SEGMENT INFORMATION, REVENUES BY GEOGRAPHY AND SIGNIFICANT CUSTOMERS - Revenues by geography (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Mar. 31, 2018	Mar. 31, 2017
Segment Reporting Information [Line Items]
Revenues	$ 250,404	$ 218,359	$ 747,083	$ 636,652
Revenues
Segment Reporting Information [Line Items]
Revenue percentage	100.00%	100.00%	100.00%	100.00%
North America(1)
Segment Reporting Information [Line Items]
Revenues	$ 94,800	$ 78,573	$ 285,927	$ 247,347
North America(1) | Revenues
Segment Reporting Information [Line Items]
Revenue percentage	38.00%	36.00%	38.00%	39.00%
South America
Segment Reporting Information [Line Items]
Revenues	$ 19,882	$ 27,770	$ 71,681	$ 71,240
South America | Revenues
Segment Reporting Information [Line Items]
Revenue percentage	8.00%	13.00%	10.00%	11.00%
Europe, the Middle East and Africa (EMEA)
Segment Reporting Information [Line Items]
Revenues	$ 113,738	$ 87,780	$ 309,078	$ 246,536
Europe, the Middle East and Africa (EMEA) | Revenues
Segment Reporting Information [Line Items]
Revenue percentage	45.00%	40.00%	41.00%	39.00%
Asia Pacific
Segment Reporting Information [Line Items]
Revenues	$ 21,984	$ 24,236	$ 80,397	$ 71,529
Asia Pacific | Revenues
Segment Reporting Information [Line Items]
Revenue percentage	9.00%	11.00%	11.00%	11.00%
United States
Segment Reporting Information [Line Items]
Revenues	$ 90,200	$ 74,000	$ 271,900	$ 234,800