SEGMENT INFORMATION General information We operate in two reportable segments, North America merchant services and International merchant services. The merchant services segments primarily offer processing solutions for credit cards, debit cards, and check-related services. Information about profit and assets We evaluate performance and allocate resources based on the operating income of each segment. The operating income of each segment includes the revenues of the segment less those expenses that are directly related to those revenues. Operating overhead, shared costs and certain compensation costs are included in Corporate in the following table. Interest expense or income and income tax expense are not allocated to the individual segments. Lastly, we do not evaluate performance or allocate resources using segment asset data. The accounting policies of the reportable segments are the same as those described in the Summary of Significant Accounting Policies in Note 1. Information on segments, including revenue by geographic distribution within segments, and reconciliations to consolidated revenues and consolidated operating income are as follows for the three months ended August 31, 2013 , and August 31, 2012 : Three Months Ended August 31, 2013 August 31, 2012 (in thousands) Revenues: United States $ 363,833 $ 345,898 Canada 86,672 80,897 North America merchant services 450,505 426,795 Europe 143,188 128,465 Asia-Pacific 35,992 35,027 International merchant services 179,180 163,492 Consolidated revenues $ 629,685 $ 590,287 Operating income (loss) for segments: North America merchant services $ 69,699 $ 67,217 International merchant services 61,541 57,140 Corporate (1) (23,856 ) (43,869 ) Consolidated operating income $ 107,384 $ 80,488 Depreciation and amortization: North America merchant services $ 13,455 $ 9,256 International merchant services 13,343 13,624 Corporate 1,576 1,015 Consolidated depreciation and amortization $ 28,374 $ 23,895 (1) Includes processing system intrusion costs of $24.0 million for th