Significant Accounting Policies (Schedule of Accounts, Notes, Loans and Financing Receivable) (Details) (Trade Accounts Receivable [Member], USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Accounts Receivable Aging [Abstract]
Current and 0 - 180 Days Past Due	$ 551,493	$ 599,643
181 Days and Over Past Due	229,143	298,643
Total Gross Accounts Receivables	780,636	898,286
Medicare Medicaid and Third Party Payors [Member]
Accounts Receivable Aging [Abstract]
Current and 0 - 180 Days Past Due	184,492	195,544
181 Days and Over Past Due	28,818	67,791
Total Gross Accounts Receivables	213,310	263,335
Facility Payors [Member]
Accounts Receivable Aging [Abstract]
Current and 0 - 180 Days Past Due	297,308	328,444
181 Days and Over Past Due	99,036	146,751
Total Gross Accounts Receivables	396,344	475,195
Private Payors [Member]
Accounts Receivable Aging [Abstract]
Current and 0 - 180 Days Past Due	69,693	75,655
181 Days and Over Past Due	101,289	84,101
Total Gross Accounts Receivables	$ 170,982	$ 159,756