Annual report pursuant to Section 13 and 15(d)

ACQUISITIONS (Details)

v3.3.1.900
ACQUISITIONS (Details) - USD ($)
$ / shares in Units, $ in Thousands
 12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Business acquisition, shares issued   873,349  
Share issue price per share   $ 18.79  
Materials and supplies $ 12,801 $ 14,078  
Equipment and property, net 121,356 101,669  
Goodwill 249,939 255,563 $ 211,847
Customer contracts 92,815 104,657  
Other intangible assets 46,116 28,815  
Current liabilities 252,986 252,679  
Business Acquisitions [Member]      
Accounts receivable, net 1,711 2,594  
Materials and supplies 71 481  
Equipment and property, net 948 4,516  
Goodwill 196 48,477  
Customer contracts 12,398 28,237  
Other intangible assets 20,092 6,471  
Current liabilities (2,329) (6,733)  
Other assets and liabilities, net 460 (2,725)  
Total consideration paid 33,547 81,318  
Less: Common Stock Payment 0 (16,413)  
Less: Contingent consideration liability (85) (1,570)  
Total cash purchase price for the Company's acquisitions $ 33,462 $ 63,335