Acquisitions (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Business Combinations [Line Items]
Goodwill Acquired During Period	$ 153,320	$ 1,279	$ 6,779
Secure [Member]
Business Combinations [Line Items]
Acquisition Date	Nov. 12, 2015
Name of acquired entity	Secure Communication Systems, Inc. and its subsidiaries
Purchase price paid	$ 230,504
Goodwill Acquired During Period	$ 153,320
Suntron [Member]
Business Combinations [Line Items]
Acquisition Date			Jun. 03, 2013
Name of acquired entity	Suntron Corporation
Purchase price paid			$ 18,582
Purchase price adjustment		$ 800
Goodwill Acquired During Period			$ 0
CTS [Member]
Business Combinations [Line Items]
Acquisition Date			Oct. 02, 2013
Purchase price paid			$ 75,982
Goodwill Acquired During Period			$ 8,058