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Schedule II: Valuation and Qualifying Accounts | 12 Months Ended
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Dec. 31, 2017
Valuation and Qualifying Accounts [Abstract] |
Schedule II: Valuation and Qualifying Accounts | MEDNAX, INC. Schedule II: Valuation and Qualifying Accounts
|  | Years Ended December 31, |
|  | 2017 |  |  | 2016 |  |  | 2015 |
Allowance for contractual adjustments and uncollectibles: |  |  |  |  |  |  |  |  |  |  |  |
Balance at beginning of year |  | $ | 1,224,366 |  |  | $ | 1,129,301 |  |  | $ | 848,767 |
Amount charged against operating revenue |  |  | 8,285,317 |  |  |  | 7,464,030 |  |  |  | 6,389,195 |
Accounts receivable contractual adjustments and write-offs (net of recoveries) |  |  | (8,223,648 | ) |  |  | (7,368,965 | ) |  |  | (6,108,661 | )
Balance at end of year |  | $ | 1,286,035 |  |  | $ | 1,224,366 |  |  | $ | 1,129,301 |

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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 -URI http://asc.fasb.org/topic&trid=2122369 + Details
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- References No definition available. + Details
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