Annual report pursuant to Section 13 and 15(d)

Fair Value Measurements - Contingent Consideration (Details)

v3.3.1.900
Fair Value Measurements - Contingent Consideration (Details) - Contingent Consideration - USD ($)
$ in Thousands
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Business Acquisition, Contingent Consideration [Line Items]      
Liability measured at fair value $ 841 $ 4,150 $ 1,827
Recurring      
Business Acquisition, Contingent Consideration [Line Items]      
Liability measured at fair value 841 4,150  
Recurring | Indatus      
Business Acquisition, Contingent Consideration [Line Items]      
Liability measured at fair value 814    
Recurring | VRX      
Business Acquisition, Contingent Consideration [Line Items]      
Liability measured at fair value 27    
Recurring | Active Building      
Business Acquisition, Contingent Consideration [Line Items]      
Liability measured at fair value   1,566  
Recurring | MyBuilding      
Business Acquisition, Contingent Consideration [Line Items]      
Liability measured at fair value   248  
Recurring | InstaManager      
Business Acquisition, Contingent Consideration [Line Items]      
Liability measured at fair value   2,335  
Recurring | VMM      
Business Acquisition, Contingent Consideration [Line Items]      
Liability measured at fair value   1  
Recurring | Level 1      
Business Acquisition, Contingent Consideration [Line Items]      
Liability measured at fair value 0 0  
Recurring | Level 1 | Indatus      
Business Acquisition, Contingent Consideration [Line Items]      
Liability measured at fair value 0    
Recurring | Level 1 | VRX      
Business Acquisition, Contingent Consideration [Line Items]      
Liability measured at fair value 0    
Recurring | Level 1 | Active Building      
Business Acquisition, Contingent Consideration [Line Items]      
Liability measured at fair value   0  
Recurring | Level 1 | MyBuilding      
Business Acquisition, Contingent Consideration [Line Items]      
Liability measured at fair value   0  
Recurring | Level 1 | InstaManager      
Business Acquisition, Contingent Consideration [Line Items]      
Liability measured at fair value   0  
Recurring | Level 1 | VMM      
Business Acquisition, Contingent Consideration [Line Items]      
Liability measured at fair value   0  
Recurring | Level 2      
Business Acquisition, Contingent Consideration [Line Items]      
Liability measured at fair value 0 0  
Recurring | Level 2 | Indatus      
Business Acquisition, Contingent Consideration [Line Items]      
Liability measured at fair value 0    
Recurring | Level 2 | VRX      
Business Acquisition, Contingent Consideration [Line Items]      
Liability measured at fair value 0    
Recurring | Level 2 | Active Building      
Business Acquisition, Contingent Consideration [Line Items]      
Liability measured at fair value   0  
Recurring | Level 2 | MyBuilding      
Business Acquisition, Contingent Consideration [Line Items]      
Liability measured at fair value   0  
Recurring | Level 2 | InstaManager      
Business Acquisition, Contingent Consideration [Line Items]      
Liability measured at fair value   0  
Recurring | Level 2 | VMM      
Business Acquisition, Contingent Consideration [Line Items]      
Liability measured at fair value   0  
Recurring | Level 3      
Business Acquisition, Contingent Consideration [Line Items]      
Liability measured at fair value 841 4,150  
Recurring | Level 3 | Indatus      
Business Acquisition, Contingent Consideration [Line Items]      
Liability measured at fair value 814    
Recurring | Level 3 | VRX      
Business Acquisition, Contingent Consideration [Line Items]      
Liability measured at fair value $ 27    
Recurring | Level 3 | Active Building      
Business Acquisition, Contingent Consideration [Line Items]      
Liability measured at fair value   1,566  
Recurring | Level 3 | MyBuilding      
Business Acquisition, Contingent Consideration [Line Items]      
Liability measured at fair value   248  
Recurring | Level 3 | InstaManager      
Business Acquisition, Contingent Consideration [Line Items]      
Liability measured at fair value   2,335  
Recurring | Level 3 | VMM      
Business Acquisition, Contingent Consideration [Line Items]      
Liability measured at fair value   $ 1