Supplemental Cash Flow Information (Tables)

12 Months Ended

Jun. 30, 2015

Supplemental Cash Flow Elements [Abstract]

Supplemental Cash Flow Disclosures

Year ended June 30 (in thousands)	2015			2014		2013
Cash paid during the period for:
Interest	$	30,984		$	29,836	$	24,432
Income taxes	40,295			49,393		51,098
Supplemental disclosure of non-cash information:
Changes in accounts payable related to purchases of property, plant and equipment	(9,900		)	2,100		(8,600		)