Significant Accounting Policies (Tables)

9 Months Ended

Sep. 30, 2012

Significant Accounting Policies [Abstract]

Percentage of net service revenue earned by type of ownership or relationship with operating entity

The following table summarizes the percentage of net service revenue earned by type of ownership or relationship the Company had with the operating entity:

	Three Months Ended September 30,						Nine Months Ended September 30,
	2012			2011			2012			2011
Equity joint ventures		49.1	%		47.6	%		48.7	%		46.9	%
Wholly-owned subsidiaries		48.1	%		49.0	%		48.5	%		49.8	%
License leasing arrangements		1.9	%		2.4	%		1.9	%		2.3	%
Management services		0.9	%		1.0	%		0.9	%		1.0	%
		100.0	%		100.0	%		100.0	%		100.0	%

Percentage of net service revenue earned by category of payor

The following table sets forth the percentage of net service revenue earned by category of payor for the three and nine months ended September 30, 2012 and 2011:

	Three Months Ended September 30,						Nine Months Ended September 30,
	2012			2011			2012			2011
Payor:
Medicare		77.2	%		79.4	%		77.9	%		79.7	%
Medicaid		1.7	%		2.4	%		1.9	%		2.3	%
Other		21.1	%		18.2	%		20.2	%		18.0	%
		100.0	%		100.0	%		100.0	%		100.0	%

The percentage of net service revenue contributed from each reporting segment

The percentage of net service revenue contributed from each reporting segment for the three and nine months ended September 30, 2012 and 2011 was as follows:

	Three Months Ended September 30,						Nine Months Ended September 30,
	2012			2011			2012			2011
Home-based services		88.3	%		88.0	%		88.3	%		87.9	%
Facility-based services		11.7	%		12.0	%		11.7	%		12.1	%
		100.0	%		100.0	%		100.0	%		100.0	%

Shares used in computation of basic and diluted per share information

The following table sets forth shares used in the computation of basic and diluted per share information:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2012		2011		2012		2011
Weighted average number of shares outstanding for basic per share calculation		17,656,842		18,263,237		18,121,217		18,251,648
Effect of dilutive potential shares:
Options		1,935		—		1,849		—
Nonvested stock		68,042		—		37,423		—
Adjusted weighted average shares for diluted per share calculation		17,726,819		18,263,237		18,160,489		18,251,648
Anti-dilutive shares		176,641		326,356		348,595		307,146