SUPPLEMENTAL CASH FLOW INFORMATION (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2015
Cash paid during the period for:
Interest	$ 18,999	$ 17,691	$ 10,638
Income taxes, net of refunds	26,835	76,072	20,272
Non-cash investing and financing activities:
Dividends declared	$ 62,066	$ 59,388	$ 56,715