Commitments, Contingencies and Other Matters (Narrative) (Detail) In Thousands, unless otherwise specified	9 Months Ended	3 Months Ended				1 Months Ended			1 Months Ended	9 Months Ended					12 Months Ended
	Mar. 31, 2015 USD ($) Entity	Mar. 31, 2015 Rising Pharmaceuticals Inc. USD ($)	Dec. 31, 2014 Rising Pharmaceuticals Inc. USD ($)	Jun. 30, 2014 Rising Pharmaceuticals Inc. USD ($)	Dec. 31, 2010 Rising Pharmaceuticals Inc. USD ($)	Apr. 30, 2014 Pack Pharmaceuticals Llc USD ($)	Mar. 31, 2015 Pack Pharmaceuticals Llc USD ($)	Jun. 30, 2014 Pack Pharmaceuticals Llc USD ($)	Dec. 31, 2014 United Phosphorous Limited USD ($)	Mar. 31, 2015 United Phosphorous Limited USD ($)	Mar. 31, 2015 United Phosphorous Limited GBP (£)	Mar. 31, 2015 Pulvair Site Group USD ($)	Mar. 31, 2015 Arsynco, Inc USD ($)	Jun. 30, 2014 Arsynco, Inc USD ($)	Jul. 31, 2009 BASF Corporation USD ($)	Mar. 31, 2015 BASF Corporation USD ($)	Jun. 30, 2014 BASF Corporation USD ($)	Mar. 31, 2015 Subsidiary USD ($)	Jun. 30, 2014 Subsidiary USD ($)
Commitments and Contingencies Disclosure [Line Items]
Loss contingency, damages sought										$ 7,200	£ 4,500	$ 1,700
Payment for litigation settlement									350
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													7,038	8,907
Partial reimbursement of environmental remediation costs previously expensed															550
Environmental remediation costs expensed in prior years															1,200
Future remediation costs receivable																3,167	4,008
Number of potentially responsible parties	150
Amount expected to be paid for product registrations and various task force groups																		2,045
Amount accrued for product registrations and various task force groups																		0	0
Earnings before interest taxes, depreciation and amortization					32,100
Contingent consideration, maximum					6,000
Payment to former owners	3,000	1,500	1,500
Percentage of issued and outstanding membership interests acquired						100.00%
Purchase price, earn-out period						3 years
Purchase price, maximum earn-out amount						15,000
Accrued contingent consideration		$ 2,937		$ 5,694			$ 4,133	$ 3,797