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Business Acquisitions (Narrative 1) (Details) (USD $)
0 Months Ended 0 Months Ended 0 Months Ended 0 Months Ended 0 Months Ended 0 Months Ended 0 Months Ended 0 Months Ended
Jun. 30, 2013
Arada Systems [Member]
Jun. 21, 2013
Arada Systems [Member]
Jun. 23, 2013
Arada Systems [Member]
Technology [Member]
Jun. 21, 2013
Arada Systems [Member]
Technology [Member]
Jun. 21, 2013
Arada Systems [Member]
US Federal [Member]
Jun. 21, 2013
Arada Systems [Member]
State and Local Jurisdiction [Member]
Apr. 02, 2013
Sierra Wireless AirCard Business [Member]
Apr. 04, 2013
Sierra Wireless AirCard Business [Member]
In-Process Research and Development [Member]
Jun. 30, 2013
Sierra Wireless AirCard Business [Member]
In-Process Research and Development [Member]
Apr. 02, 2013
Sierra Wireless AirCard Business [Member]
In-Process Research and Development [Member]
Apr. 04, 2013
Sierra Wireless AirCard Business [Member]
Technology [Member]
Jun. 30, 2013
Sierra Wireless AirCard Business [Member]
Technology [Member]
Apr. 02, 2013
Sierra Wireless AirCard Business [Member]
Technology [Member]
Apr. 04, 2013
Sierra Wireless AirCard Business [Member]
Customer Relationships [Member]
Apr. 02, 2013
Sierra Wireless AirCard Business [Member]
Customer Relationships [Member]
Apr. 04, 2013
Sierra Wireless AirCard Business [Member]
Noncompete Agreements [Member]
Apr. 02, 2013
Sierra Wireless AirCard Business [Member]
Noncompete Agreements [Member]
Apr. 04, 2013
Sierra Wireless AirCard Business [Member]
Order Backlog [Member]
Apr. 02, 2013
Sierra Wireless AirCard Business [Member]
Order Backlog [Member]
Apr. 02, 2013
Sierra Wireless AirCard Business [Member]
US Federal [Member]
Apr. 02, 2013
Sierra Wireless AirCard Business [Member]
Foreign Tax Authority [Member]
Apr. 02, 2013
Sierra Wireless AirCard Business [Member]
State and Local Jurisdiction [Member]
Jun. 30, 2013
Avaak Inc. [Member]
Jul. 03, 2012
Avaak Inc. [Member]
Jul. 03, 2012
Avaak Inc. [Member]
In-Process Research and Development [Member]
Jul. 03, 2012
Avaak Inc. [Member]
Technology [Member]
Jul. 03, 2012
Avaak Inc. [Member]
Customer Relationships [Member]
Jul. 03, 2012
Avaak Inc. [Member]
Trade Names and Trademarks [Member]
Jul. 03, 2012
Avaak Inc. [Member]
US Federal [Member]
Jul. 03, 2012
Avaak Inc. [Member]
State and Local Jurisdiction [Member]
Jun. 30, 2013
Firetide, Inc. [Member]
Jun. 04, 2012
Firetide, Inc. [Member]
Jun. 04, 2012
Firetide, Inc. [Member]
Technology [Member]
Jun. 04, 2012
Firetide, Inc. [Member]
US Federal [Member]
Jun. 04, 2012
Firetide, Inc. [Member]
State and Local Jurisdiction [Member]
Business Acquisition [Line Items]                                                                      
Business Acquisition, Percentage of Voting Interests Acquired                                               100.00%                      
Aggregate purchase price   $ 5,250,000         $ 140,030,000                                 $ 24,004,000               $ 7,200,000      
Purchase price, cash paid   4,200,000                                           21,600,000               6,600,000      
Business Acquisition Cost of Acquired Entity, Cash To Be Paid At Future Date 1,100,000                                           2,400,000               600,000        
Deferred Tax Assets, Net                                               5,937,000                      
Goodwill   1,195,000         53,330,000                                 11,895,000               3,041,000      
Business Acquisition, Purchase Price Allocation, Goodwill, Expected Tax Deductible Amount         700,000 1,200,000                           36,200,000 2,300,000 53,300,000             0 0       1,600,000 3,000,000
Business Acquisition, Purchase Price Allocation, Intangibles, Net   4,040,000   4,000,000     69,700,000     9,500,000     16,300,000   40,500,000   2,300,000   1,100,000         6,000,000 2,000,000 2,300,000 300,000 1,400,000       4,159,000      
Discount rate used to calculate present value of future cash flows ( in percentage)     21.50%         13.00%     10.00%     12.00%   12.00%   10.00%               14.00% 14.00% 16.00%         22.00%    
Acquired intangible assets, estimated useful life ( in years)     5 years         4 years     4 years     8 years   5 years                   5 years 5 years 5 years         5 years    
Future Cost to Complete In-Process Research and Development                 7,400,000                                                    
In Process Research and Development achieving technological feasibility                 $ 2,000,000     $ 2,000,000                                              
IPR&D Reaching Technical Feasibility Useful Life                                                 4 years                    
Estimated percentage of acquired IPR&D to reach technical feasibility by end of fiscal 2013               70.00%                                                      
Estimated percentage of acquired IPR&D to reach technical feasibility by second quarter of 2014               30.00%