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Other Contingencies (Details) (USD $) | 1 Months Ended | 3 Months Ended |  | 1 Months Ended
--- | --- | --- | --- | ---
Jul. 31, 2011 | Mar. 31, 2013 financial_covenant | Mar. 31, 2013 Standby Letter Of Credit [Member] | Jan. 31, 2013 Maximum [Member]
Short-term Debt [Line Items] |  |  |  |
Bank line of credit |  | $ 57,000,000 |  |
Borrowings under line of credit |  | 0 |  |
Irrevocable standby letter of credit, outstanding |  |  | 43,520,000 |
Reduction of bank line of credit |  | $ (43,520,000) |  |
Number of financial covenants |  | 2 |  |
Line of credit expiration date |  | Jun. 30, 2013 |  |
Number of states in which entity operates |  | 48 |  |
Percentage of reduction to Medicare payments to nursing centers | 11.10% |  |  |
Percentage of reduction of Medicare payments to plans and providers |  |  |  | 2.00%

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- Definition Amount borrowed under the credit facility as of the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
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- Definition Date the credit facility terminates, in CCYY-MM-DD format. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
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- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 129 -Paragraph 2, 4 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
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