6. Leases

The Company utilizes land and buildings in its operations under various lease agreements. The Company does not consider any one of these individual leases material to the Company's operations. Initial lease terms are generally for twenty years and, in many cases, provide for renewal options and in most cases rent escalations. Certain leases require contingent rent, determined as a percentage of sales as defined by the terms of the applicable lease agreement. For most locations, the Company is obligated for occupancy related costs including payment of property taxes, insurance and utilities.

In the years ended December 31, 2011, 2010 and 2009, the Company sold seven, eight and six restaurant properties, respectively, in sale-leaseback transactions for net proceeds of $10,601, $12,442 and $8,662, respectively. These leases have been classified as operating leases and generally contain a twenty-year initial term plus renewal options.

Deferred gains on sale-leaseback transactions of $421, $729 and $2,819 were recognized during the years ended December 31, 2011, 2010 and 2009, respectively, and are being amortized over the term of the related leases. The amortization of deferred gains on sale-leaseback transactions was $3,521, $3,347 and $3,178 for the years ended December 31, 2011, 2010 and 2009, respectively.

Minimum rent commitments under capital and non-cancelable operating leases at December 31, 2011 were as follows:


Years Ending December 31,	Capital			Operating
2012	$	149		$	50,412
2013		151			49,399
2014		145			47,117
2015		134			45,063
2016		129			43,777
Thereafter		1,311			307,345

Total minimum lease payments		2,019		$	543,113

Less amount representing interest		(875	)

Total obligations under capital leases		1,144
Less current portion		(53	)

Long-term obligations under capital leases	$	1,091

Total rent expense on operating leases, including percentage rent on both operating and capital leases, was as follows:


	Year ended December 31,
	2011		2010		2009
Minimum rent on real property	$	46,618	$	46,586	$	46,727
Additional rent based on percentage of sales		2,109		1,992		2,982

Restaurant rent expense		48,727		48,578		49,709
Administrative and equipment rent		937		929		1,295

	$	49,664	$	49,507	$	51,004