Schedule II - Valuation of Qualifying Accounts of Continuing Operations (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Allowance for doubtful accounts
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period		$ 6,044	$ 3,879	$ 3,047
Charged to Costs and Expenses		7,507	5,710	4,066
Charged to Other Accounts		0	0	0
Other		0	0	0
(Write-offs) net of Recoveries		(5,371)	(3,545)	(3,234)
Balance at End of Period		8,180	6,044	3,879
Professional Liability Reserve
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period		25,163	27,067	22,740
Charged to Costs and Expenses		5,213	5,930	4,870
Charged to Other Accounts	[1]	1,010	2,440	8,136
Other		0	0	0
Payments	[2]	(9,768)	(10,274)	(8,679)
Balance at End of Period		21,618	25,163	27,067
Workers Compensation Reserve
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period		250	176	287
Charged to Costs and Expenses		364	372	473
Charged to Other Accounts	[1]	0	0	0
Other		0	18	(87)
Payments	[2]	(387)	(316)	(497)
Balance at End of Period		227	250	176
Health Insurance Reserve
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period		687	843	679
Charged to Costs and Expenses		6,294	6,748	8,321
Charged to Other Accounts	[1]	0	237	879
Other		0	0	0
Payments	[2]	(6,295)	(7,141)	(9,036)
Balance at End of Period		$ 686	$ 687	$ 843

[1] As discussed in Note 3, "Discontinued Operations" of the Consolidated Financial Statements, the Company has presented the results of certain divestiture and lease termination transactions as discontinued operations. The amounts charged to Other Accounts represent the amounts charged to discontinued operations.

[2] Payments for the Professional Liability Reserve include amounts paid for claims settled during the period as well as payments made under structured arrangements for claims settled in earlier periods.