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Schedule II - Valuation and Qualifying Accounts | 12 Months Ended
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Dec. 31, 2016
Valuation and Qualifying Accounts [Abstract] |
Schedule of Valuation and Qualifying Accounts Disclosure [Text Block] |
Description |  | Balance at beginning of year |  | Provisions |  | Deductions from reserves |  | Balance at end of year
Year ended December 31, 2016 |  |  |  |  |  |  |  |
Allowance for doubtful accounts and billing adjustments |  | $ | 6,682 |  |  | 10,788 |  |  | (9,377 | ) |  | $ | 8,093 |
Workers’ compensation loss reserves |  | $ | 15,020 |  |  | 2,693 |  |  | (1,929 | ) |  | $ | 15,784 |
Year ended December 31, 2015 |  |  |  |  |  |  |  |
Allowance for doubtful accounts and billing adjustments |  | $ | 4,404 |  |  | 10,486 |  |  | (8,208 | ) |  | $ | 6,682 |
Workers’ compensation loss reserves |  | $ | 15,564 |  |  | 2,117 |  |  | (2,661 | ) |  | $ | 15,020 |
Year ended December 31, 2014 |  |  |  |  |  |  |  |  |  |  |  |
Allowance for doubtful accounts and billing adjustments |  | $ | 2,465 |  |  | 6,680 |  |  | (4,741 | ) |  | $ | 4,404 |
Workers’ compensation loss reserves |  | $ | 17,123 |  |  | 2,211 |  |  | (3,770 | ) |  | $ | 15,564 |

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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 -Subparagraph (SX 210.12-09) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690 + Details
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- References No definition available. + Details
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