Acquisition (Narratives) (Details) - Secure [Member] - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Dec. 31, 2015	Jun. 30, 2016
Business Combinations [Line Items]
Acquisition Date	Nov. 12, 2015
Name of acquired entity		Secure Communication Systems, Inc. and its subsidiaries (collectively referred to as Secure Technology or Secure)
Purchase price paid	$ 230,504
Goodwill		$ 154,065