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.

In the fourth quarter of 2014, the Company settled litigation involving Powerweb Energy, Inc. (“Powerweb”). The lawsuit had alleged claims arising from the Company’s development and sale of wiHUBB wireless lighting technology. The Company believes that it had meritorious defenses against the claims and had vigorously defended itself in the matter. During the third quarter of 2014 the parties engaged in settlement discussions and the Company increased the accrual by $4.0 million based on those discussions. In view of several considerations including the inherent uncertainty of litigation, and the expense of a trial, the Company settled the litigation. The settlement payment made by the Company did not exceed the amounts previously reserved for the litigation.

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 $13.9 million and $12.3 million as of December 31, 2014 and 2013, 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, 2014 and 2013.

Leases

Total rental expense under operating leases was $24.7 million in 2014, $23.2 million in 2013 and $21.9 million in 2012. The minimum annual rentals on non-cancelable, long-term, operating leases in effect at December 31, 2014 are expected to approximate $13.3 million in 2015, $10.4 million in 2016, $6.8 million in 2017, $5.3 million in 2018, $3.5 million in 2019 and $13.4 million thereafter. The Company’s leases primarily consist of operating leases for buildings or equipment. The terms for building leases typically range from 5-25 years with 5-10 year renewal periods.