Commitments, Contingencies and Other Matters (Narrative) (Detail) In Thousands, unless otherwise specified					1 Months Ended			3 Months Ended					12 Months Ended
	Sep. 30, 2014 Entity	Sep. 30, 2014 Rising Pharmaceuticals Inc. USD ($)	Jun. 30, 2014 Rising Pharmaceuticals Inc. USD ($)	Dec. 31, 2010 Rising Pharmaceuticals Inc. USD ($)	Apr. 30, 2014 Pack Pharmaceuticals Llc USD ($)	Sep. 30, 2014 Pack Pharmaceuticals Llc USD ($)	Jun. 30, 2014 Pack Pharmaceuticals Llc USD ($)	Sep. 30, 2014 United Phosphorous Limited USD ($)	Sep. 30, 2014 United Phosphorous Limited EUR (€)	Sep. 30, 2014 Pulvair Site Group USD ($)	Sep. 30, 2014 Arsynco, Inc USD ($)	Jun. 30, 2014 Arsynco, Inc USD ($)	Jun. 30, 2009 BASF Corporation USD ($)	Sep. 30, 2014 BASF Corporation USD ($)	Jun. 30, 2014 BASF Corporation USD ($)	Sep. 30, 2014 Subsidiary USD ($)	Jun. 30, 2014 Subsidiary USD ($)
Commitments and Contingencies Disclosure [Line Items]
Loss contingency, damages sought								$ 7,200	€ 4,500	$ 1,700
Recorded liability reflected in condensed consolidated balance sheet								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											7,405	8,907
Partial reimbursement of environmental remediation costs previously expensed													550
Environmental remediation costs expensed in prior years													1,200
Future remediation costs receivable														3,332	4,008
Number of potentially responsible parties	150
Amount expected to be paid for product registrations and various task force groups																3,900
Amount accrued for product registrations and various task force groups																0	0
Earnings before interest taxes, depreciation and amortization				32,100
Contingent consideration at fair value		5,684
Contingent consideration, maximum				6,000
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		$ 5,784	$ 5,694			$ 3,905	$ 3,797