Related Party Transactions (Tables)

12 Months Ended

Dec. 31, 2011

Related Party Transactions

Schedule of Related Party Payments

	2011		2010		2009
Operating leases	$	29,137	$	26,373	$	18,176
Salaries and benefits		64,830		61,524		60,298
Billing fees		11,240		11,387		9,589
Medical advisory services		2,575		2,245		1,989