Rendering

Component: (Network and Table)
Network
42203 - Disclosure - Segment Reporting - Long-lived Assets by Geographic Region (Details)
(http://www.itg.com/role/DisclosureSegmentReportingLongLivedAssetsByGeographicRegionDetails)
TableSchedule of Segment Reporting Information, by Segment [Table]
Slicers (applies to each fact value in each table cell)
Reporting Entity [Axis]0000920424 (http://www.sec.gov/CIK)
Segment reportingPeriod [Axis]
2016-12-31
2015-12-31
2014-12-31
Geographical [Axis]Geographical [Axis]Geographical [Axis]
United StatesCanadaEuropeAsia PacificGeographical [Domain]United StatesCanadaEuropeAsia PacificGeographical [Domain]United StatesCanadaEuropeAsia PacificGeographical [Domain]
Long-lived Assets
92,509,000  
6,972,000  
22,883,000  
3,726,000  
126,090,000  
97,226,000  
6,357,000  
27,226,000  
3,162,000  
133,971,000  
107,746,000  
7,070,000  
29,531,000  
2,377,000  
146,724,000