Related Party Transactions (Tables)

12 Months Ended

Dec. 31, 2012

Related Party Transactions

Schedule of Related Party Payments

	2012		2011		2010
Operating leases	$	29,079	$	29,137	$	26,373
Salaries and benefits		65,908		64,830		61,524
Billing fees		11,126		11,240		11,387
Medical advisory services		2,671		2,575		2,245