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Schedule II-Valuation and Qualifying Accounts | 12 Months Ended
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Dec. 31, 2013
Valuation and Qualifying Accounts [Abstract] |
Schedule II-Valuation and Qualifying Accounts | Schedule II—Valuation and Qualifying Accounts Years ended December 31, 2013, 2012, and 2011 (Amounts in thousands)
Description | Balance at Beginning of Year |  | “Additions” Charged to Costs and Expenses |  | “Other” Additions (Deductions) |  | “Less” Deductions |  | Balance at End of Year
Year ended December 31, 2013 |  |  |  |  |  |  |  |  |
Allowance for doubtful accounts | $ | 6,728 |  |  | 9,421 |  |  | — |  |  | 6,901 |  |  | 9,248 |
Insurance reserves | $ | 25,188 |  |  | 52,658 |  | 1 | — |  |  | 46,966 |  | 2 | 30,880 |
Year ended December 31, 2012 |  |  |  |  |  |  |  |  |
Allowance for doubtful accounts | $ | 5,647 |  |  | 9,726 |  |  | — |  |  | 8,645 |  |  | 6,728 |
Insurance reserves | $ | 30,548 |  |  | 43,024 |  | 1 | — |  |  | 48,384 |  | 2 | 25,188 |
Year ended December 31, 2011 |  |  |  |  |  |  |  |  |
Allowance for doubtful accounts | $ | 4,761 |  |  | 9,217 |  |  | — |  |  | 8,331 |  |  | 5,647 |
Insurance reserves | $ | 28,067 |  |  | 46,287 |  | 1 | — |  |  | 43,806 |  | 2 | 30,548 |
1 | Includes costs and expenses incurred for premiums and claims related to health and general insurance.
2 | Includes costs and expenses paid for premiums and claims related to health and general insurance.
See accompanying Report of Independent Registered Public Accounting Firm incorporated herein by reference.

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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 FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 09 -Article 12 + Details
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