Annual report pursuant to Section 13 and 15(d)

Goodwill and Intangible Assets (Details)

v3.3.0.814
Goodwill and Intangible Assets (Details) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Dec. 31, 2014
Sep. 30, 2014
Jun. 30, 2014
Mar. 31, 2015
Mar. 31, 2014
Mar. 31, 2013
Goodwill [Line Items]            
Goodwill       $ 0 $ 31,997 [1],[2] $ 0
Goodwill, Acquired During Period [1],[2]         31,997  
Goodwill, Transfers     $ 0      
Goodwill impairment $ (20,547) $ (11,450) [2]   (31,997) [2]   (2,884)
Kentrox [Member]            
Goodwill [Line Items]            
Goodwill       0 11,450 [2]  
Goodwill, Acquired During Period [2]         11,450  
Goodwill, Transfers [2]     (11,450)      
CSI [Member]            
Goodwill [Line Items]            
Goodwill       0 20,547 [1]  
Goodwill, Acquired During Period [1]         20,547  
Goodwill, Transfers     (20,547)      
CSG [Member]            
Goodwill [Line Items]            
Goodwill       0 0 0
Goodwill, Acquired During Period         0  
Goodwill, Transfers [2]     11,450      
Goodwill impairment [2]       (11,450)    
IBW [Member]            
Goodwill [Line Items]            
Goodwill   $ 20,500   0 0 $ 0
Goodwill, Acquired During Period         $ 0  
Goodwill, Transfers     $ 20,547      
Goodwill impairment       $ (20,547)    
[1] Certain amounts have been adjusted to reflect measurement period adjustments related to the CSI acquisition (see Note 2).
[2] See Note 1 for restatement information.