Commitments and contingencies

Litigation

In the ordinary course of the Company’s business, the Company regularly becomes involved in contract and other negotiations and, in more limited circumstances, becomes involved in legal proceedings, claims and litigation. The outcomes of these matters are inherently unpredictable. The Company is not currently involved in any outstanding litigation that it believes, individually or in the aggregate, will have a material adverse effect on its business, financial condition, results of operations or cash flows.

Indemnification

The Company’s software agreements generally include certain provisions for indemnifying customers against liabilities if the Company’s software solutions infringe a third party’s intellectual property rights. To date, the Company has not incurred any losses as a result of such indemnifications and has not accrued any liabilities related to such obligations in the Company’s Consolidated Financial Statements.

Lease commitments

The Company leases office space and office equipment under non-cancellable operating leases that expire at various dates. The Company incurred approximately $4.1 million, $3.5 million and $3.3 million of total rent expense for the years ended December 31, 2016, 2015 and 2014, respectively. As of December 31, 2016, the future minimum lease commitments related to lease agreements were as follows:



Year Ending December 31,	Amount
2017	$	3,833
2018	2,688
2019	2,263
2020	783
2021	297
2022 and thereafter	74
Total minimum lease payments	$	9,938

The Company's headquarters are located in Houston, Texas, where it leases approximately 98,000 square feet of office space. In June 2016, the Company entered into a fifth amendment to this corporate office lease (the "Fifth Lease Amendment"). The Fifth Lease Amendment, among other things, provides for a three year extension, until October 31, 2019, unless earlier terminated or extended pursuant to the terms of the lease.

The Company also has smaller regional offices in London, England; Dublin, Ireland; Paris, France; Toulouse, France; Munich, Germany; Frankfurt, Germany; Sydney, Australia; San Francisco, California; Skokie, Illinois; and Austin, Texas.

In August 2012, the Company entered into a ten year lease for approximately 3,100 square feet of office space in London, United Kingdom. The lease provides an option to terminate the lease in August 2017.

In June 2011, the Company entered into a five year lease for approximately 3,300 square feet of office space in Austin, Texas. In August 2016, the Company signed a second amendment to renew its Austin office lease through September 2018.

As part of the SignalDemand, Inc. acquisition, the Company assumed a lease for approximately 6,600 square feet of office in San Francisco, California. This lease was renewed through December 2020.

As part of the PROS France acquisition, the Company assumed a lease for approximately 14,380 square feet of office space in Toulouse, France, which expires February 24, 2018. As part of the PROS France acquisition, the Company also assumed a lease for approximately 9,666 square feet of office space in Skokie, Illinois, which expires February 28, 2018 with an option to extend the term of the lease for an additional 5 years.

In January 2016, the Company entered into a nine year lease for approximately 5,000 square feet of office space in Paris, France. The lease provides an option to terminate the lease in March 2022.

The Company believes its existing facilities are sufficient for its current needs. The Company may add new facilities and expand its existing facilities as it adds employees, and it believes that suitable additional or substitute space will be available as needed to accommodate any such expansion of its operations.

The Company had no capital leases at December 31, 2016 and 2015.