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Impairment, restructuring and other charges- Restructuring and other charges(Details) $ in Thousands	3 Months Ended				9 Months Ended
	Mar. 31, 2017 USD ($)	Sep. 30, 2016 USD ($)	Mar. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Mar. 31, 2017 USD ($) employee	Mar. 31, 2016 USD ($)
Impairment, restructuring and other charges
Acquisition-related costs	$ 140		$ 1,438		$ 4,163	$ 1,438
Employee termination costs	579		2,158		9,797	2,700
Legal settlement and related costs			125			1,843
Facility closures/consolidation	1,478				1,750
Other charges			816			912
Other charges (reversals)	311				757
Total expensed	2,508		4,537		16,467	6,893
Security Division
Impairment, restructuring and other charges
Impairment of assets		$ 5,400		$ 5,900
Acquisition-related costs					810
Employee termination costs	345		747		8,152	1,083
Facility closures/consolidation	650				829
Other charges			496			572
Other charges (reversals)					7
Total expensed	995		1,243		$ 9,798	1,655
Security Division | AS&E
Impairment, restructuring and other charges
Number of positions eliminated | employee					50
Acquisition related and employee severance costs	400				$ 12,100
Acquisition-related costs					14,400
Employee termination costs					$ 8,000
Healthcare Division
Impairment, restructuring and other charges
Number of positions eliminated | employee					86
Restructuring costs expected	2,000				$ 2,000
Facility consolidation and employee termination costs	800				1,700
Employee termination costs	182		1,378		1,262	1,378
Facility closures/consolidation	634				703
Other charges			305			305
Other charges (reversals)	297				297
Total expensed	1,113		1,683		2,262	1,683
Optoelectronics and Manufacturing Division
Impairment, restructuring and other charges
Impairment of minority interest investment				$ 2,800
Acquisition-related costs			384			384
Employee termination costs	52		33		383	239
Legal settlement and related costs			125			1,843
Facility closures/consolidation	194				218
Other charges			15			35
Other charges (reversals)	19				(48)
Total expensed	265		557		553	2,501
Corporate
Impairment, restructuring and other charges
Acquisition-related costs	140		1,054		3,353	1,054
Other charges (reversals)	(5)				501
Total expensed	$ 135		$ 1,054		$ 3,854	$ 1,054

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