Environmental Remediation (Narrative) (Detail) (USD $) In Thousands, unless otherwise specified		12 Months Ended				12 Months Ended
	Jun. 30, 2014 Entity	Jun. 30, 2014 Pulvair Site Group	Jun. 30, 2009 BASF Corporation	Jun. 30, 2014 BASF Corporation	Jun. 30, 2013 BASF Corporation	Jun. 30, 2014 Arsynco, Inc	Jun. 30, 2013 Arsynco, Inc
Site Contingency [Line Items]
Loss contingency, damages sought value		$ 1,700
Site contingency loss exposure not accrued, low estimate						12,200
Site contingency loss exposure not accrued, high estimate						14,000
Accrual for environmental loss contingencies						8,907	7,166
Partial reimbursement of environmental remediation costs previously expensed			550
Environmental remediation costs expensed in prior years			1,200
Future remediation costs receivable				$ 4,008	$ 3,225
Number of potentially responsible parties	150