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Accrued Expenses (Details) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Payables and Accruals [Abstract]    
Salaries and related costs $ 19,340 $ 21,726
Credit balances due to patients and payors 4,303 7,293
Group health insurance claims 2,277 3,124
Other 4,935 6,350
Total $ 30,855 $ 38,493