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LEASES

We lease office facilities for use in our operations, as well as transportation, computer and other equipment. We also have an office facility lease agreement with an entity owned by an executive’s father and brother. The executive does not have an interest in the entity that leases the property to us and the lease arrangement existed at the time we acquired the business unit that occupies this property. Most of our leases are non-cancelable operating lease agreements and they expire at various dates through 2021. In addition to rent, the leases generally require us to pay taxes, maintenance, insurance and certain other operating expenses.

Rent expense was approximately $6.7 million in 2014, $7.5 million in 2013, and $7.2 million in 2012, which included rent expense associated with related party lease agreements of $1.7 million in 2014, $1.7 million in 2013, and $1.7 million in 2012.

Future minimum lease payments under all non-cancelable leases at December 31, 2014 are as follows:

Years ending December 31,
2015	$	5,437
2016		5,136
2017		4,459
2018		2,270
2019		1,680
Thereafter		2,005
	$	20,987

Included in future minimum lease payments are non-cancelable payments due to related parties of $1.7 million in 2015, $1.7 million in 2016 and $1.7 million in 2017.