Commitments and Contingencies

The Company is currently involved in various claims and legal actions that arise in the ordinary course of business. The Company has recorded reserves for loss contingencies based on the specific circumstances of each case. Such reserves are recorded when it is probable that a loss has been incurred as of the balance sheet date and can be reasonably estimated. Although the results of litigation and claims can never be predicted with certainty, the Company does not believe that the ultimate resolution of these actions will have any material adverse effect on the Company’s business, financial condition or results of operations.

Purchase Commitments

The Company has various purchasing contracts for contract manufacturing and research and development services which are based on the requirements of the business. Generally, the contracts are at prices not in excess of current market price and do not commit the business to obligations outside the normal customary terms for similar contracts.

Operating Leases

The Company uses various leased facilities and equipment in its operations. The lease terms for these leased assets vary depending on the terms of the applicable lease agreement. Rental expense for all operating leases totaled $3.2 million, $3.3 million, $0.9 million, and $0.8 million for the twelve months ended December 31, 2017, the twelve months ended December 31, 2016, the five months ended December 31, 2015, and the seven months ended July 31, 2015, respectively. At December 31, 2017, the Company had no residual value guarantees related to its operating leases. Future minimum lease payments as of December 31, 2017 under noncancelable operating leases are as follows:



(in thousands)	Future Lease Payments
2018	$	1,149
2019	1,151
2020	1,107
2021	1,056
2022	992
Thereafter	1,027
Total	$	6,482