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Intangible Assets
6 Months Ended
Jun. 30, 2013
Goodwill and Intangible Assets Disclosure [Abstract]  
Goodwill and Other Intangibles
Intangible Assets

The balance of intangible assets was $0.4 million as of June 30, 2013 and December 31, 2012. This asset, which represents a software license agreement, was not placed in service as of June 30, 2013, therefore amortization of intangible assets was zero for the six months ended June 30, 2013 and June 30, 2012. The term of the license agreement is indefinite and once placed in service, the Company plans to amortize the cost over the estimated useful life, which is approximately seven years.