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Leases

12 Months Ended

Dec. 31, 2012

9. Leases

The Company has entered into various building and equipment capital and operating leases for its surgery centers in operation and under development and for office space, expiring at various dates through 2031. Future minimum lease payments, including payments during expected renewal option periods, at December 31, 2012 were as follows (in thousands):

		Capitalized		Operating
Year Ended December 31,		Equipment Leases		Leases

2013		$	2,674	$	47,102
2014			1,859		46,568
2015			1,383		45,745
2016			1,125		44,973
2017			1,011		44,466
Thereafter			7,937		362,031

	Total minimum rentals		15,989	$	590,885
Less amounts representing interest at rates ranging from 3.8% to 11.8%			4,007

	Capital lease obligations	$	11,982

At December 31, 2012, buildings and equipment with a cost of approximately $16,219,000 and accumulated depreciation of approximately $4,243,000 were held under capital leases. The Company and the partners in the partnerships have guaranteed payment of certain of these leases. Rental expense for operating leases for the years ended December 31, 2012, 2011 and 2010 was approximately $47,278,000, $42,413,000 and $37,301,000, respectively.

- Definition

The entire disclosure for lessee entity's leasing arrangements including, but not limited to, all of the following: (a.) The basis on which contingent rental payments are determined, (b.) The existence and terms of renewal or purchase options and escalation clauses, (c.) Restrictions imposed by lease agreements, such as those concerning dividends, additional debt, and further leasing.

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