Quarterly report pursuant to Section 13 or 15(d)

Goodwill and Intangible Assets - Additional Information (Details)

v3.19.2
Goodwill and Intangible Assets - Additional Information (Details)
$ in Thousands
 1 Months Ended 3 Months Ended 6 Months Ended
Jan. 31, 2019
USD ($)
Jun. 30, 2019
USD ($)
Jun. 30, 2018
USD ($)
Jun. 30, 2019
USD ($)
business
Jun. 30, 2018
USD ($)
Dec. 31, 2018
USD ($)
Finite-Lived Intangible Assets [Line Items]            
Number of businesses acquired | business       1    
Gross Carrying Amount   $ 26,695   $ 26,695   $ 26,164
Accumulated Amortization   24,643   24,643   24,160
Intangible assets, net   2,052   2,052   2,004
Amortization of intangible assets       457 $ 502  
Measurement period adjustment       719    
Measurement period adjustment, hold back contingency       398    
Customer contracts            
Finite-Lived Intangible Assets [Line Items]            
Gross Carrying Amount   7,835   7,835   7,818
Accumulated Amortization   7,730   7,730   7,668
Amortization of intangible assets   22 $ 0 45 0  
Customer relationships            
Finite-Lived Intangible Assets [Line Items]            
Gross Carrying Amount   12,576   12,576   12,082
Accumulated Amortization   10,686   10,686   10,302
Non-compete agreements            
Finite-Lived Intangible Assets [Line Items]            
Gross Carrying Amount   3,011   3,011   3,013
Accumulated Amortization   3,011   3,011   3,013
Technology            
Finite-Lived Intangible Assets [Line Items]            
Gross Carrying Amount   2,730   2,730   2,710
Accumulated Amortization   2,686   2,686   2,651
Trade names            
Finite-Lived Intangible Assets [Line Items]            
Gross Carrying Amount   543   543   541
Accumulated Amortization   530   530   $ 526
Other intangible assets            
Finite-Lived Intangible Assets [Line Items]            
Amortization of intangible assets   $ 222 $ 249 $ 412 $ 502  
Undisclosed Name of Acquiree 1 | Customer relationships            
Finite-Lived Intangible Assets [Line Items]            
Finite-lived intangible assets acquired $ 500          
Remaining amortization period of asset acquired 8 years          
Minimum | Customer contracts            
Finite-Lived Intangible Assets [Line Items]            
Acquired intangible assets useful life       1 year    
Minimum | Other intangible assets            
Finite-Lived Intangible Assets [Line Items]            
All other acquired intangible assets useful life       4 years    
Maximum | Customer contracts            
Finite-Lived Intangible Assets [Line Items]            
Acquired intangible assets useful life       5 years    
Maximum | Other intangible assets            
Finite-Lived Intangible Assets [Line Items]            
All other acquired intangible assets useful life       15 years    
U.S. Regions            
Finite-Lived Intangible Assets [Line Items]            
Goodwill acquired during the year       $ 315    
U.S. Federal            
Finite-Lived Intangible Assets [Line Items]            
Measurement period adjustment       $ 628