Future Minimum Rent

12 Months Ended

Dec. 31, 2015

We have operating leases with tenants that expire at various dates through 2037 which generally include fixed increases or adjustments based on the consumer price index. Leases also provide for additional rents based on certain operating expenses. Future minimum rent contractually due under operating leases, excluding tenant reimbursements of certain costs, as of December 31, 2015 is as follows (in thousands):



Year	Amount
2016	$	341,140
2017	314,607
2018	276,486
2019	247,757
2020	217,378
Thereafter	775,896
Total	$	2,173,264

A certain amount of our rental income is from tenants with leases which are subject to contingent rent provisions. These contingent rents are subject to the tenant achieving periodic revenues in excess of specified levels. For the years ended December 31, 2015, 2014 and 2013, the amount of contingent rent earned by us was not significant.