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Commitments and Contingencies (Tables) | 12 Months Ended
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Dec. 31, 2012
Estimate of Future Net Minimum Lease Payments | An estimate of future net minimum lease payments in each of the next five years ending December 31, and the periods thereafter, is as follows:
|  | Amount |
2013 |  | $ | 5,215 |
2014 |  |  | 5,188 |
2015 |  |  | 5,142 |
2016 |  |  | — |
2017 |  |  | — |
All later years |  |  | — |
|  | $ | 15,545 |

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- Definition Tabular disclosure of future minimum payments required in the aggregate and for each of the five succeeding fiscal years for operating leases having initial or remaining noncancelable lease terms in excess of one year and the total minimum rentals to be received in the future under noncancelable subleases as of the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6453985&loc=d3e41502-112717 + Details
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