Goodwill and Other Intangible Assets - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2016	Mar. 31, 2015
Goodwill And Other Intangible Assets [Line Items]
Amortization expense recorded on intangible assets	$ 3.2	$ 3.0	$ 9.2	$ 9.0
Carrying amount of indefinite trade names acquired	14.2		$ 14.2
Technology and Patents
Goodwill And Other Intangible Assets [Line Items]
Remaining amortization period of patents and customer lists, in months			106 months
Technology and Patents | Minimum
Goodwill And Other Intangible Assets [Line Items]
Amortization period of finite lived intangible assets, in months			60 months
Technology and Patents | Maximum [Member]
Goodwill And Other Intangible Assets [Line Items]
Amortization period of finite lived intangible assets, in months			240 months
Technology and Patents | EpiWorks and ANADIGICS
Goodwill And Other Intangible Assets [Line Items]
Identifiable intangibles assets recorded in connection with acquisitions	10.3		$ 10.3
Customer Lists
Goodwill And Other Intangible Assets [Line Items]
Remaining amortization period of patents and customer lists, in months			167 months
Customer Lists | Minimum
Goodwill And Other Intangible Assets [Line Items]
Amortization period of finite lived intangible assets, in months			120 months
Customer Lists | Maximum [Member]
Goodwill And Other Intangible Assets [Line Items]
Amortization period of finite lived intangible assets, in months			240 months
Customer Lists | EpiWorks and ANADIGICS
Goodwill And Other Intangible Assets [Line Items]
Identifiable intangibles assets recorded in connection with acquisitions	32.8		$ 32.8
Trademarks | EpiWorks and ANADIGICS
Goodwill And Other Intangible Assets [Line Items]
Identifiable intangibles assets recorded in connection with acquisitions	$ 0.3		$ 0.3