Leases

The Company operates certain administrative, manufacturing, warehouse and testing facilities and equipment under lease arrangements that are accounted for as operating leases. Total rental expense was $15.0 million, $12.0 million and $12.5 million for 2015, 2014 and 2013, respectively.

Future minimum operating lease payments at December 31, 2015 were as follows (in thousands):



2016	$	13,727
2017	9,324
2018	7,725
2019	6,883
2020	4,772
Thereafter	13,098
Total operating lease payments	$	55,529