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Basis of Presentation (Details 2) $ in Thousands	3 Months Ended
	Sep. 30, 2015 USD ($) item	Jun. 30, 2015 USD ($)
Property and equipment
Net value of turnkey security screening program assets at Mexico	$ 19,900
Business Combinations
Number of acquisitions | item	0
Level 3
Fair value of financial instruments
Fair value of assets	$ 0	$ 0
Fair value of liabilities	0	0
Non-recurring
Fair value of financial instruments
Fair value of assets	0	0
Fair value of liabilities	0	0
Recurring | Level 1
Fair value of financial instruments
Total	182	291
Recurring | Level 1 | Equity securities
Fair value of financial instruments
Investments	182	291
Recurring | Level 2
Fair value of financial instruments
Insurance company contracts	19,246	20,100
Derivative contracts	(21)	(41)
Total	21,375	22,209
Recurring | Level 2 | Equity securities
Fair value of financial instruments
Investments	2,150	2,150
Recurring | Total
Fair value of financial instruments
Insurance company contracts	19,246	20,100
Derivative contracts	(21)	(41)
Total	21,557	22,500
Recurring | Total | Equity securities
Fair value of financial instruments
Investments	$ 2,332	$ 2,441

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