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SUPPLEMENTAL CASH FLOW INFORMATION (Tables)
 12 Months Ended
Dec. 31, 2017
Supplemental Cash Flow Information

Supplemental cash flow information was as follows:

 

Years Ended December 31,

    2017      2016      2015  

Interest paid

    $ 5,773      $ 3,362      $ 4,993  

Income taxes net of refunds

    $ 48,056      $ 99,006      $ 103,261