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Summary of Significant Accounting Policies Workers compensation and medical malpractice reclassification (Details) (USD $) In Thousands, unless otherwise specified	0 Months Ended
	Dec. 31, 2012
Accounting Changes and Error Corrections [Abstract]
Prior Period Reclassification Adjustment	$ 16,400

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- Definition

The amount of a reclassification adjustment made to prior period financial statement amounts.

+ References

No definition available.

+ Details

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