Commitments and Contingencies

Leases: The Company leases buildings and equipment under operating lease agreements expiring at various dates through 2033. Certain leases include renewal and/or purchase options, which may be exercised by us. As of the year ended 2015, future minimum annual lease payments by year and, in the aggregate, under non-cancelable operating lease agreements with original terms of one year or more consisted of the following (in thousands):



2016	$	19,395
2017	15,576
2018	12,541
2019	8,886
2020	6,675
Thereafter	12,347
Total	$	75,420

Rent expense was $25.3 million, $26.3 million and $22.9 million in 2015, 2014 and 2013, respectively.

Environmental: The Company is involved in certain environmental matters and has been designated as a potentially responsible party for certain hazardous waste sites. Prior to the Company’s acquisition of Nashua, Nashua was involved in certain environmental matters and was designated by the Environmental Protection Agency ("EPA") as a potentially responsible party for certain hazardous waste sites. In addition, Nashua had been notified by certain state environmental agencies that Nashua may bear responsibility for remedial action at other sites which have not been addressed by the EPA. The sites at which Nashua may have remedial responsibilities are in various stages of investigation and remediation. Due to the unique physical characteristics of each site, the remedial technology employed, the extended time-frames of each remediation, the interpretation of applicable laws and regulations and the financial viability of other potential participants, the ultimate range of outcomes cannot be predicted with certainty; therefore, the Company’s ultimate cost of remediation is an estimate and is contingent on these factors. Based on information currently available, the Company believes that Nashua’s remediation expense, if any, is not likely to have a material effect on its consolidated financial position or results of operations. As of the years ended 2015 and 2014, the undiscounted liability relating to the Company’s environmental matters was $1.6 million and $1.7 million, respectively, primarily the amount recorded on Nashua’s acquisition date, and is included in other liabilities. There have been no material changes related to these environmental matters since Nashua's acquisition date.

Litigation: The Company is party to various legal actions that are ordinary and incidental to its business. While the outcome of pending legal actions cannot be predicted with certainty, management believes the outcome of these various proceedings will not have a material effect on the Company’s consolidated financial statements.

Concentrations of Credit Risk: The Company has limited concentrations of credit risk with respect to financial instruments. Temporary cash investments and other investments are placed with high credit quality institutions, and concentrations within accounts receivable are generally limited due to the Company’s diverse customer base and its dispersion across different industries and geographic areas. The Company extends credit to customers based on its evaluation of the customer's financial condition. The Company does not require that any collateral be provided by its customers.

Letters of Credit: As of the year ended 2015, the Company had outstanding letters of credit of approximately $17.8 million and a de minimis amount of surety bonds. Based on the Company’s experience with these arrangements, it does not believe that any obligations that may arise will have a material effect on the Company's consolidated financial condition or results of operations.

Tax Audits: The Company’s income, sales and use, and other tax returns are routinely subject to audit by various authorities. The Company is currently under audit related to unclaimed property, which is being led by the state of Delaware and includes other states as well. The Company believes that the resolution of any matters raised during such audits will not have a material effect on the Company’s consolidated financial position or its results of operations.

Multi-Employer Pension Plans: The Company participates in a number of Multi-Employer Pension Plans and is exposed to significant risks and uncertainties arising from its participation in these Multi-Employer Pension Plans. These risks and uncertainties, including changes in future contributions due to partial or full withdrawal of the Company and other participating employers from these Multi-Employer Pension Plans, could significantly increase the Company’s future contributions or the underfunded status of these Multi-Employer Pension Plans. Two of the Multi-Employer Pension Plans are in mass withdrawal status. While it is not possible to quantify the potential impact of future actions of the Company or other participating employers from these Multi-Employer Pension Plans, continued participation in or withdrawal from these Multi-Employer Pension Plans could have a material impact on the Company’s consolidated financial statements.