Quarterly report pursuant to Section 13 or 15(d)

Acquisitions - Additional Information (Detail)

v3.3.0.814
Acquisitions - Additional Information (Detail)
$ in Thousands
 1 Months Ended 3 Months Ended 9 Months Ended
Aug. 01, 2015
USD ($)
Mar. 30, 2015
USD ($)
Nov. 01, 2014
USD ($)
Mar. 28, 2013
USD ($)
Dec. 31, 2013
USD ($)
Apr. 30, 2013
USD ($)
Sep. 30, 2015
USD ($)
Installment
Sep. 30, 2014
USD ($)
Sep. 30, 2015
USD ($)
Installment
Sep. 30, 2014
USD ($)
Dec. 31, 2014
USD ($)
Business Acquisition [Line Items]                      
Income before provision for income taxes             $ 4,217 $ 4,388 $ 13,886 $ 12,215  
Cash paid on date of acquisition                   $ 1,679  
Promissory Note                      
Business Acquisition [Line Items]                      
Number of installments | Installment                 4    
Installment amount payable $ 900   $ 900                
Jamison                      
Business Acquisition [Line Items]                      
Revenue             1,465   $ 1,465    
Income before provision for income taxes             $ 188   188    
Costs related to acquisition                 $ 122    
Cash paid on date of acquisition   $ 3,550                  
Equity consideration for SLP acquired   $ 3,562                  
Earn out payments percentage on EBITDA remainder of fiscal year   20.00%                  
Earn out payments percentage on EBITDA due in two years   20.00%                  
Earn out payments percentage on EBITDA due in three years   20.00%                  
Earn out payments percentage on EBITDA due in four years   20.00%                  
Earn out payments percentage on EBITDA due in five years   20.00%                  
Earn Out Payments Percentage On EBITDA Due thereafter   20.00%                  
Contingent consideration   $ 1,429                  
Jamison | Seller Note                      
Business Acquisition [Line Items]                      
Promissory note issued   $ 394                  
Interest on principal amount   5.00%                  
Jamison | Principals Notes                      
Business Acquisition [Line Items]                      
Promissory note issued   $ 1,771                  
Interest on principal amount   5.00%                  
Jamison | Promissory Note                      
Business Acquisition [Line Items]                      
Number of installments | Installment                 3    
Ten-Sixty                      
Business Acquisition [Line Items]                      
Acquisition of assets       $ 1,900,000              
Cash paid on date of acquisition       2,500              
Promissory note issued       $ 1,479              
Ten-Sixty | Promissory Note                      
Business Acquisition [Line Items]                      
Number of installments | Installment             2        
Installment amount payable         $ 218 $ 218          
Quarterly installments from June 30, 2014 through March 31, 2017             $ 87        
Principal on fixed rate notes, interest rate             5.00%   5.00%    
Outstanding note payable             $ 569   $ 569    
Milbank                      
Business Acquisition [Line Items]                      
Outstanding note payable             590   590    
Equity consideration for SLP acquired             $ 755   $ 755   $ 1,325