Balance Sheet Details (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Balance Sheet Related Disclosures [Abstract]
Insurance recovery for health claims	$ 369	$ 724
Insurance recovery for workers’ compensation claims	2,629	2,513
Insurance recovery for professional liability claims	1,700	1,774
Insurance recovery receivable	4,698	5,011
Insurance recovery for workers’ compensation claims	5,352	5,317
Insurance recovery for professional liability claims	7,763	8,695
Non-current security deposits	786	969
Non-current income tax receivable	0	261
Deferred compensation assets	1,156	830
Net debt issuance costs	1,063	1,252
Finance lease right-of-use assets	102	148
Cloud computing asset	3,187	826
Other non-current assets	19,409	18,298
Salaries and payroll taxes	13,131	13,270
Accrual for bonuses and commissions	7,705	3,566
Accrual for workers’ compensation claims	7,670	7,219
Accrual for professional liability claims	2,499	2,660
Accrual for healthcare claims	3,926	3,610
Accrual for vacation	609	982
Accrued compensation and benefits	35,540	31,307
Accrual for workers’ compensation claims	12,692	12,454
Accrual for professional liability claims	12,720	14,484
Long-term accrued claims	25,412	26,938
Restructuring	2,082	1,012
Deferred compensation	2,475	2,216
Long-term note payable	2,426	0
Long-term unrecognized tax benefits	951	701
Other	61	108
Other long-term liabilities	$ 7,995	$ 4,037
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	us-gaap:OtherAssetsNoncurrent	us-gaap:OtherAssetsNoncurrent