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Goodwill and Intangible Assets (Tables)
 12 Months Ended
Dec. 31, 2015
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of Activity and Balances Related to Goodwill by Reporting Segment

A summary of the activity and balances related to goodwill by reporting segment is as follows:

 

    December 31, 2014     Other (1)     December 31, 2015  

Eastern region

   $ 17,429      $ —        $ 17,429   

Western region

     87,697        (194 )      87,503   

Recycling

     12,315        —          12,315   

Other

     1,729        —          1,729   
 

 

 

    

 

 

    

 

 

  

Total

   $ 119,170      $ (194 )    $ 118,976   
 

 

 

    

 

 

    

 

 

  

 

    April 30, 2014     Acquisitions     December 31, 2014  

Eastern region

   $ 17,429      $ —        $ 17,429   

Western region

     87,666        31        87,697   

Recycling

     12,315        —          12,315   

Other

     1,729        —          1,729   
 

 

 

    

 

 

    

 

 

  

Total

   $ 119,139      $ 31      $ 119,170   
 

 

 

    

 

 

    

 

 

  

 

    April 30, 2013     Acquisitions     Other (2)     April 30, 2014  

Eastern region

   $ 16,858      $ 539      $ 32      $ 17,429   

Western region

     86,880        790        (4 )      87,666   

Recycling

     12,190        125        —          12,315   

Other

     —          1,729        —          1,729   
 

 

 

    

 

 

    

 

 

    

 

 

  

Total

   $ 115,928      $ 3,183      $ 28      $ 119,139   
 

 

 

    

 

 

    

 

 

    

 

 

  

 

(1) Goodwill adjustment related to the allocation of goodwill to a business that was divested in fiscal year 2015.
(2) Goodwill adjustments related to acquisition activity, including the finalization of the deferred tax liability associated with the December 5, 2012 BBI acquisition.
Components of Intangible Assets
    Covenants
Not-to-Compete		     Client Lists     Total  

Balance, December 31, 2015

      

Intangible assets

   $ 17,266      $ 16,065      $ 33,331   

Less accumulated amortization

     (16,198 )      (7,881 )      (24,079 ) 
 

 

 

    

 

 

    

 

 

  
  $ 1,068      $ 8,184      $ 9,252   
 

 

 

    

 

 

    

 

 

  

 

    Covenants
Not-to-Compete		     Client Lists     Total  

Balance, December 31, 2014

      

Intangible assets

   $ 17,296      $ 16,071      $ 33,367   

Less accumulated amortization

     (15,730 )      (5,829 )      (21,559 ) 
 

 

 

    

 

 

    

 

 

  
  $ 1,566      $ 10,242      $ 11,808   
 

 

 

    

 

 

    

 

 

  

 

    Covenants
Not-to-Compete		     Client Lists     Total  

Balance, April 30, 2014

      

Intangible assets

   $ 17,245      $ 15,760      $ 33,005   

Less accumulated amortization

     (15,363 )      (4,222 )      (19,585 ) 
 

 

 

    

 

 

    

 

 

  
  $ 1,882      $ 11,538      $ 13,420   
 

 

 

    

 

 

    

 

 

  
Estimated Future Amortization Expense

The intangible amortization expense estimated for the five fiscal years following fiscal year 2015 and thereafter is as follows:

 


Estimated Future Amortization Expense as of December 31, 2015:

   

For the fiscal year ending December 31, 2016

    $ 2,048   

For the fiscal year ending December 31, 2017

    $ 1,784   

For the fiscal year ending December 31, 2018

    $ 1,581   

For the fiscal year ending December 31, 2019

    $ 1,213   

For the fiscal year ending December 31, 2020

    $ 1,020   

Thereafter

    $ 1,606