COMMITMENTS AND CONTINGENCIES

Leases

The Company leases a number of its administrative and operations facilities under non-cancellable operating leases expiring at various dates through 2030. In addition, the Company leases certain construction, automotive and computer equipment on a multi-year, monthly or daily basis. Rental expense in the years ended December 31, 2014, 2013 and 2012 was $24.1 million, $19.5 million and $18.7 million, respectively.

At December 31, 2014, the future minimum lease payments required under the non-cancellable operating leases were as follows (in thousands):



Year	Minimum Lease Payments
2015	$	17,140
2016	13,476
2017	8,715
2018	5,523
2019	3,237
Thereafter	2,815
Total	$	50,906

Litigation

The Company is involved in certain litigation incidental to the conduct of its business and affairs. Management, after consultation with legal counsel, does not believe that the outcome of any such litigation, individually or in the aggregate, will have a material adverse effect on the Company’s consolidated financial condition, results of operations or cash flows.

Contingencies

In connection with the Brinderson acquisition, certain pre-acquisition matters were identified during 2014 where a loss is both probable and reasonably estimable. The Company identified the range of possible loss from zero to $24 million. The Company establishes liabilities in accordance with FASB ASC Subtopic No. 450-20, Contingencies – Loss Contingencies, and, accordingly, recorded a $14.5 million accrual for such matters as part of its purchase price accounting for Brinderson (see Note 1). The Company believes it has meritorious defenses against certain of these matters.

Purchase Commitments

The Company had no material purchase commitments at December 31, 2014.

Guarantees

The Company has many contracts that require the Company to indemnify the other party against loss from claims, including claims of patent or trademark infringement or other third party claims for injuries, damages or losses. The Company has agreed to indemnify its surety against losses from third-party claims of subcontractors. The Company has not previously experienced material losses under these provisions and, while there can be no assurances, currently does not anticipate any future material adverse impact on its consolidated financial position, results of operations or cash flows.

The Company regularly reviews its exposure under all its engagements, including performance guarantees by contractual joint ventures and indemnification of its surety. As a result of the most recent review, the Company has determined that the risk of material loss is remote under these arrangements and has not recorded a liability for these risks at December 31, 2014 on its consolidated balance sheet.

Retirement Plans

Substantially all of the Company’s U.S. employees are eligible to participate in one of the Company’s sponsored defined contribution savings plans, which are qualified plans under the requirements of Section 401(k) of the Internal Revenue Code. Company contributions to the domestic plans were $5.3 million, $4.5 million and $3.7 million for the years ended December 31, 2014, 2013 and 2012, respectively.

Certain foreign subsidiaries maintain various other defined contribution retirement plans. Company contributions to such plans for the years ended December 31, 2014, 2013 and 2012 were $1.2 million, $1.2 million and $1.4 million, respectively.

In connection with the Company’s 2009 acquisition of Corrpro, the Company assumed an obligation associated with a contributory defined benefit pension plan sponsored by a subsidiary of Corrpro located in the United Kingdom. Employees of this Corrpro subsidiary no longer accrue benefits under the plan; however, Corrpro continues to be obligated to fund prior period benefits. Corrpro funds the plan in accordance with recommendations from an independent actuary and made contributions of $0.2 million and $0.3 million in 2014 and 2013, respectively. Both the pension expense and funding requirements for the years ended December 31, 2014 and 2013 were immaterial to the Company’s consolidated financial position and results of operations. The benefit obligation and plan assets at December 31, 2014 approximated $8.6 million and $10.1 million, respectively. The Company used a discount rate of 3.4% for the evaluation of the pension liability. The Company has recorded an asset associated with the overfunded status of this plan of approximately $1.5 million, which is included in other long-term assets on the consolidated balance sheet. The benefit obligation and plan assets at December 31, 2013 approximated $7.9 million and $9.6 million, respectively. Plan assets consist of investments in equity and debt securities as well as cash, which are primarily Level 2 investments under the fair value hierarchy of U.S. GAAP.