Commitments and Contingencies

The Company leases certain office facilities, warehouses and data processing equipment under operating leases. Rental expense totaled $21.8 million, $19.0 million and $18.6 million in 2018, 2017 and 2016, respectively.

The aggregate future minimum lease payments for leases as of December 31, 2018 were as follows:



	Lease Obligations

2019	$	17,509
2020	13,162
2021	10,516
2022	7,979
2023	6,535
2024 and thereafter	29,658
	$	85,359

Warranty costs are provided for at the time of sale. The warranty provision is based on historical costs and adjusted for specific known claims. A rollforward of the warranty reserve is as follows:



	2018			2017			2016
	(In thousands)
Beginning balance at January 1	$	6,281		$	5,628		$	7,936
Provision for warranties	2,334			2,895			1,828
Claim settlements	(2,981		)	(2,317		)	(3,539		)
Other adjustments, including acquisitions, divestitures and currency translation	(331		)	75			(597		)
Ending balance at December 31	$	5,303		$	6,281		$	5,628

The Company and certain of its subsidiaries are involved in pending and threatened legal, regulatory and other proceedings arising in the ordinary course of business. These proceedings may pertain to matters such as product liability or contract disputes, and may also involve governmental inquiries, inspections, audits or investigations relating to issues such as tax matters, intellectual property, environmental, health and safety issues, governmental regulations, employment and other matters. Although the results of such legal proceedings cannot be predicted with certainty, the Company believes that the ultimate disposition of these matters will not have a material adverse effect, individually or in the aggregate, on the Company’s business, financial condition, results of operations or cash flows.