OPERATING LEASES

12 Months Ended

Dec. 31, 2017

The Company leases office and manufacturing facilities under operating leases with terms ranging from one to 15 years, excluding renewal options.

Total net rental expense charged to operations in 2017, 2016, and 2015 was $34.6 million, $27.2 million and $20.2 million, respectively. The amounts above are shown net of sublease rentals which were immaterial for the years 2017, 2016 and 2015, respectively.

Future minimum rental payments under operating leases with remaining non-cancelable terms in excess of one year are as follows:



	Real
In thousands	Estate		Equipment		Total
2018	$	28,957	$	2,690	$	31,647
2019	25,857		1,925		27,782
2020	24,266		976		25,242
2021	19,561		512		20,073
2022	16,350		271		16,621
2023 and after	66,017		24		66,041