Quarterly report pursuant to Section 13 or 15(d)

Business Combinations - Intangibles (Details)

v3.8.0.1
Business Combinations - Intangibles (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2018
Mar. 31, 2017
2018 Acquisitions    
Estimates of acquired intangible assets    
Estimated Fair Value $ 15,940  
Weighted Average Estimated Useful Life (Years) 13 years  
2018 Acquisitions | Customer relationships    
Estimates of acquired intangible assets    
Estimated Fair Value $ 14,220  
Weighted Average Estimated Useful Life (Years) 15 years  
2018 Acquisitions | Trademarks and trade names    
Estimates of acquired intangible assets    
Estimated Fair Value $ 460  
Weighted Average Estimated Useful Life (Years) 5 years  
2018 Acquisitions | Non-Compete    
Estimates of acquired intangible assets    
Estimated Fair Value $ 1,260  
Weighted Average Estimated Useful Life (Years) 5 years  
2017 Acquisitions    
Estimates of acquired intangible assets    
Estimated Fair Value $ 13,080 $ 13,080
Weighted Average Estimated Useful Life (Years) 9 years  
2017 Acquisitions | Customer relationships    
Estimates of acquired intangible assets    
Estimated Fair Value $ 8,950  
Weighted Average Estimated Useful Life (Years) 10 years  
2017 Acquisitions | Trademarks and trade names    
Estimates of acquired intangible assets    
Estimated Fair Value $ 1,050  
Weighted Average Estimated Useful Life (Years) 10 years  
2017 Acquisitions | Non-Compete    
Estimates of acquired intangible assets    
Estimated Fair Value $ 3,080  
Weighted Average Estimated Useful Life (Years) 5 years