Subsequent Events	12 Months Ended
Dec. 31, 2011
Subsequent Events
Subsequent Events	16. Subsequent Events The Company assessed events occurring subsequent to December 31, 2011 for potential recognition and disclosure in the consolidated financial statements. In February 2012, the Company, through a wholly owned subsidiary, acquired a majority interest in a surgery center for approximately $3,200,000. Upon acquisition, the operations of the acquired center were merged into an existing center. Other than as previously described, no events have occurred that would require adjustment to or disclosure in the consolidated financial statements.

The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business.

No definition available.

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