Commitments and Contingencies

Legal and Environmental

The Company is subject to various legal proceedings arising in the normal course of its business. These proceedings include claims for damages arising out of use of the Company’s products, intellectual property, workers’ compensation and environmental matters. The Company is self-insured up to specified limits for certain types of claims, including product liability and workers’ compensation, and is fully self-insured for certain other types of claims, including environmental and intellectual property matters. The Company recognizes a liability for any contingency that in management’s judgment is probable of occurrence and can be reasonably estimated. We continually reassess the likelihood of adverse judgments and outcomes in these matters, as well as estimated ranges of possible losses based upon an analysis of each matter which includes consideration of outside legal counsel and, if applicable, other experts.

The Company is subject to environmental laws and regulations which may require that it investigate and remediate the effects of potential contamination associated with past and present operations as well as those acquired through business combinations. Environmental liabilities are recorded when remedial efforts are probable and the costs can be reasonably estimated. The Company continues to monitor these environmental matters and revalues its liabilities as necessary. Total environmental liabilities were $4.9 million and $5.2 million as of December 31, 2017 and 2016, respectively.

The Company accounts for conditional asset retirement and environmental obligations in accordance with the applicable accounting guidance. The accounting guidance defines “conditional asset retirement obligation” as a legal obligation to perform an asset retirement activity in which the timing and/or method of settlement are conditional on a future event that may or may not be within the control of the Company. Accordingly, an entity is required to recognize a liability for the fair value of a conditional asset retirement obligation if the fair value of the liability can be reasonably estimated. Asset retirement obligations were not material as of December 31, 2017 and 2016.

Leases

Total rental expense under operating leases was $30.5 million in 2017, $28.8 million in 2016 and $25.7 million in 2015. The minimum annual rentals on non-cancelable, long-term, operating leases in effect at December 31, 2017 are expected to approximate $18.0 million in 2018, $15.6 million in 2019, $10.8 million in 2020, $8.2 million in 2021, $6.2 million in 2022 and $18.8 million thereafter. The Company’s leases primarily consist of operating leases for buildings or equipment. The terms for building leases typically range from month-to-month to up to 11 years, with various renewal periods depending on the terms.