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Accrued Expenses (Tables) | 12 Months Ended
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Dec. 31, 2017
Accrued Expenses [Abstract] |
Summary of Accrued Expenses | Accrued expenses as of December 31, 2017 and 2016 consisted of the following (in thousands):
|  | December 31, 2017 |  |  | December 31, 2016 |
Salaries and related costs |  | $ | 16,828 |  |  | $ | 10,569 |
Credit balances due to patients and payors |  |  | 4,158 |  |  |  | 3,880 |
Group health insurance claims |  |  | 2,929 |  |  |  | 2,499 |
Federal income tax payable |  |  | 2,833 |  |  |  | - |
Other |  |  | 6,594 |  |  |  | 4,808 |
Total |  | $ | 33,342 |  |  | $ | 21,756 |

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