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Supplemental Cash Flow Information
 12 Months Ended
Dec. 31, 2015
Supplemental Cash Flow Elements [Abstract]  
Supplemental Cash Flow Information
19. SUPPLEMENTAL CASH FLOW INFORMATION

The following table summarizes, in thousands, supplemental information about our cash flows for the years ended December 31, 2015, 2014 and 2013:

 

     Years Ended December 31,  
     2015      2014      2013  

SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION:

         

Cash paid for interest

    $ 141,048       $ 231,946       $ 220,730   

Cash paid for income taxes, net of $7,500, $13,336 and $5,822 for refunds in 2015, 2014 and 2013

    $ 108,090       $ 93,875       $ 67,759   

SUPPLEMENTAL DISCLOSURE OF NONCASH INVESTING ACTIVITIES:

         

Acquisition of property through accounts payable commitments

    $ 9,006       $ 20,275       $ 15,200   

Contingent consideration liability

    $ 5,388       $ —         $ —     

SUPPLEMENTAL DISCLOSURE OF NONCASH FINANCING ACTIVITIES:

         

Net settlement of stock options exercised

    $ —         $ 10       $ 644   

Net settlement of shares issued from the deferred compensation plan

    $ 2,949       $ 527       $ 792   

Vesting of restricted stock

    $ 2,742       $ —         $ —     

Accrued dividends

    $ 1,419       $ 63       $ —