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Commitments and Contingencies
3 Months Ended
Mar. 31, 2013
Commitments and Contingencies [Abstract]  
Commitments and Contingencies
(10)  
Commitments and Contingencies
 
In addition to its debt obligations described in Note 6 above, the Company had commitments to purchase approximately $62.7 million of rental equipment as of March 31, 2013. The Company also utilizes certain office facilities and equipment under long-term non-cancellable operating lease agreements with total future minimum lease payments of approximately $5.4 million as of March 31, 2013.