Quarterly report pursuant to Section 13 or 15(d)

Quarterly report pursuant to Section 13 or 15(d)

Goodwill and Intangible Assets - Classes of Intangible Assets (Detail)

v3.19.1
Goodwill and Intangible Assets - Classes of Intangible Assets (Detail) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Mar. 31, 2019
Dec. 31, 2018
Finite-Lived Intangible Assets [Line Items]    
Total cost of intangibles $ 160,261 $ 159,887
Accumulated Amortization 22,417 19,858
Finite-lived intangibles, net 123,285  
Intangible assets, net 137,844 140,029
Trade Name    
Finite-Lived Intangible Assets [Line Items]    
Trade Name - Indefinite-lived 14,559 14,559
Trade Name    
Finite-Lived Intangible Assets [Line Items]    
Cost 3,675 3,675
Accumulated Amortization 3,211 3,042
Finite-lived intangibles, net $ 464 $ 633
Non-Compete Agreement    
Finite-Lived Intangible Assets [Line Items]    
Amortization Period 24 months 24 months
Cost $ 27 $ 27
Accumulated Amortization 21 18
Finite-lived intangibles, net 6 9
Customer Relationships    
Finite-Lived Intangible Assets [Line Items]    
Cost 142,000 141,626
Accumulated Amortization 19,185 16,798
Finite-lived intangibles, net $ 122,815 $ 124,828
Minimum | Trade Name    
Finite-Lived Intangible Assets [Line Items]    
Amortization Period 12 months 12 months
Maximum | Trade Name    
Finite-Lived Intangible Assets [Line Items]    
Amortization Period 24 months 24 months
Maximum | Customer Relationships    
Finite-Lived Intangible Assets [Line Items]    
Amortization Period 180 months 180 months