v2.4.0.6

Valuation and Qualifying Accounts | 12 Months Ended
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Dec. 31, 2012
Valuation and Qualifying Accounts [Abstract] |
Valuation and Qualifying Accounts | Valuation and Qualifying Accounts SUPPLEMENTAL INFORMATION Valuation and Qualifying Accounts—Schedule II
|  | (Amounts in thousands) |
|  | Balance, beginning of year |  |  | Additions charged to operations |  |  | Deletions from Reserve |  |  | Balance, end of year |
Allowance for doubtful accounts: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Year ended December 31, 2012 |  | $ | 97 |  |  | $ | 242 |  |  | $ | — |  |  | $ | 339 |
Year ended December 31, 2011 |  |  | 197 |  |  |  | — |  |  |  | 100 |  |  |  | 97 |
Year ended December 31, 2010 |  |  | 590 |  |  |  | 263 |  |  |  | 656 |  |  |  | 197 |

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- Definition The entire disclosure for any allowance and reserve accounts (their beginning and ending balances, as well as a reconciliation by type of activity during the period). Alternatively, disclosure of the required information may be within the footnotes to the financial statements or a supplemental schedule to the financial statements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 09 -Article 12 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e24092-122690 + Details
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