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Goodwill And Intangible Assets
3 Months Ended
Mar. 31, 2013
Goodwill And Intangible Assets  
Goodwill And Intangible Assets

(6) Goodwill and Intangible Assets

 

The changes in the carrying amount of goodwill for the three months ended March 31, 2013 and 2012 are as follows (in thousands):

 

   Three Months Ended
   March 31,
   2013 2012
        
Balance, beginning of period  $ 1,652,002 $ 1,229,298
Goodwill acquired, including post acquisition adjustments    (2,702)   11,911
Goodwill disposed, including impact of deconsolidation transaction   (2,120)   (787)
        
 Balance, end of period  $ 1,647,180 $ 1,240,422

Amortizable intangible assets at March 31, 2013 and December 31, 2012 consisted of the following (in thousands):

 

     March 31, 2013 December 31, 2012
     Gross        Gross       
     Carrying Accumulated    Carrying Accumulated   
     Amount Amortization  Net Amount Amortization  Net
                      
Deferred financing cost  $ 14,536 $ (3,519) $ 11,017 $ 14,523 $ (3,029) $ 11,494
Agreements, contracts and other intangible assets   3,448   (2,305)   1,143   3,448   (2,250)   1,198
                      
   Total amortizable intangible assets  $ 17,984 $ (5,824) $ 12,160 $ 17,971 $ (5,279) $ 12,692

Amortization of intangible assets for the three months ended March 31, 2013 and 2012 was $545,000 and $314,000, respectively. Estimated amortization of intangible assets for the remainder of 2013 and the following five years and thereafter is $1,753,000, $2,334,000, $2,333,000, $2,332,000, $1,514,000, $939,000 and $955,000, respectively. The Company expects to recognize amortization of intangible assets over a weighted average period of 5.6 years.

 

At March 31, 2013 and December 31, 2012, other non-amortizable intangible assets related to restrictive covenant arrangements were $9,825,000, respectively.