Intangible assets are amortized over their useful lives and are subject to impairment testing. The values assigned to intangible assets in connection with the Merger Transaction and the acquisitions of Servalite and Tagworks were determined through separate independent appraisals. In connection with the Merger Transaction, the Company acquired the Quick Tag license for consideration amounting to $11,500. The values assigned to intangible assets in connection with the acquisition of Ook were determined by management pending an independent appraisal. The Ook intangible asset values may be adjusted by management for any changes upon completion of the independent appraisal. Other intangibles, net as of December 31, 2011 and 2010 consist of the following:

The Predecessor Company's amortization expense for amortizable assets was $2,678 and $6,912 for the five months ended May 28, 2010 and the year ended December 31, 2009, respectively. The Successor Company's amortization expense for amortizable assets was $10,669 and $20,717 for the seven months ended December 31, 2010 and the year ended December 31, 2011. For the years ending December 31, 2012, 2013, 2014, 2015 and 2016, the Successor's amortization expense for amortizable assets is estimated to be $21,580, $21,380, $21,380, $20,719 and $18,792, respectively.