LEASES

We lease office facilities for use in our operations, as well as transportation, computer and other equipment. Most of our leases are non-cancelable operating lease agreements and they expire at various dates through 2023. 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 2016, $7.2 million in 2015, and $6.7 million in 2014, which included rent expense associated with related party lease agreements of $330,000 in 2016, $1.8 million in 2015, and $1.7 million in 2014.

Future minimum lease payments under all non-cancelable leases at December 31, 2016 are as follows:



Years Ending December 31,
2017	$	5,177
2018	4,221
2019	3,556
2020	3,273
2021	2,059
Thereafter	601
Total	$	18,887