Commitments and Contingencies

3 Months Ended

Mar. 31, 2014

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

Commitments and Contingencies — We are involved, from time to time, in lawsuits arising in the normal course of business. We believe these pending lawsuits will not have a material adverse impact on our financial results or statement of income. There have been no material changes during the quarter ended March 31, 2014 to the commitments and contingencies previously reported in the 2013 Annual Report except as noted below.

In March 2014, we entered into an exclusive agreement with a vendor to purchase a minimum number of paging devices over a three-year period. We have a purchase commitment of $8.3 million over this three year contractual term.

In April 2014, we entered into an agreement with a vendor for certain information technology services over a three-year contract term. The total contractual obligation is $1.1 million.

In April 2014, we amended an existing agreement with a vendor for our headquarters office space in Springfield, Virginia. We extended the original lease term for an additional 3 years with the new lease term expiring on March 31, 2018. In addition, we retained an adjacent office space for a lease period of 4 years also expiring on March 31, 2018. The additional rent expense, net of rent abatement, associated with the amendment is estimated to be approximately $1.2 million over the amended lease terms.