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ACQUISITIONS, DIVESTITURES AND PRO FORMA SUMMARY (Tables)
12 Months Ended
Dec. 31, 2012
Business Combinations [Abstract]  
Schedule of merger and acquisition costs
 Year Ended
 December 31,
 2011
 (amounts in
 thousands)
  
Merger expenses (legal and advisory expenses)$ 767
Lease abandonment expense  775
Merger and acquisition costs$ 1,542