Impairment, restructuring and other charges - Impairment, restructuring and other charges (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Mar. 31, 2019	Mar. 31, 2018	Mar. 31, 2019	Mar. 31, 2018
Restructuring and other charges
Assets fully written off, including inventory and the intangible assets and fixed assets				$ 7,181
Impairment charges	$ 0	$ 4,037	$ 0	7,181
Acquisition-related costs		77	287	1,258
Employee termination costs		290	1,575	766
Facility closures / consolidation		109	2,084	433
Legal and accrued settlement costs, net	(1,777)	9,549	(2,792)	13,851
Total expensed	(1,777)	14,062	1,154	23,489
Security Division
Restructuring and other charges
Impairment charges		91		1,581
Employee termination costs		18		348
Facility closures / consolidation		117		198
Total expensed		226		2,127
Healthcare Division
Restructuring and other charges
Impairment charges		3,946		4,525
Employee termination costs		3	1,442	3
Facility closures / consolidation		(8)	2,084	235
Legal and accrued settlement costs, net		5,766		9,966
Total expensed		9,707	3,526	14,729
Optoelectronics and Manufacturing Division
Restructuring and other charges
Impairment charges				1,075
Acquisition-related costs			287
Employee termination costs		269	133	415
Total expensed		269	420	1,490
Corporate
Restructuring and other charges
Acquisition-related costs		77		1,258
Legal and accrued settlement costs, net	(1,777)	3,783	(2,792)	3,885
Total expensed	$ (1,777)	$ 3,860	$ (2,792)	$ 5,143

Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

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This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities.

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Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Includes, but is not limited to, one-time termination benefits, termination of an operating lease or other contract, consolidating or closing facilities, and relocating employees, and termination benefits associated with an ongoing benefit arrangement. Excludes expenses associated with special or contractual termination benefits, a discontinued operation or an asset retirement obligation.

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The aggregate amount of write-downs for impairments recognized during the period for long lived assets held for use (including those held for disposal by means other than sale).

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Amount of litigation expense, including but not limited to legal, forensic, accounting, and investigative fees.

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Discloses the amount charged against the accrued restructuring reserves, or earnings if not previously accrued, during the period for the specified type of restructuring cost.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount of expenses for special or contractual termination benefits provided to current employees involuntarily terminated under a benefit arrangement associated exit or disposal activities pursuant to an authorized plan. Excludes expenses related to one-time termination benefits, a discontinued operation or an asset retirement obligation.

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