Acquisition charges

3 Months Ended

Mar. 31, 2015

Business Combinations [Abstract]

Acquisition charges

3. Acquisition charges

We incurred various costs as a result of the 2011 acquisition of National that are included in Other for segment reporting purposes, consistent with how management measures the performance of its segments. For the three months ended March 31, 2015 and 2014, Acquisition charges were primarily from the ongoing amortization of intangible assets resulting from the National acquisition. See Note 7 for more information.