XML 48 R30.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Acquisition of KCG Holdings, Inc. (Tables) | 3 Months Ended
--- | ---
Mar. 31, 2018
Business Combinations [Abstract] |
Schedule of Preliminary allocation of intangible assets, amortization period and goodwill | Amounts allocated to intangible assets, the amortization period and goodwill were as follows:
(in thousands) | Amount | Amortization Years
Technology | $ | 67,700 |  | 1-6 years
Customer relationships | 94,000 |  | 13 - 17 years
Trade names | 1,000 |  | 10 years
Favorable leases | 5,895 |  | 2-15 years
Exchange memberships | 6,400 |  | Indefinite
Intangible assets | $ | 174,995 |  |
Goodwill | 128,286 |  |
Total | $ | 303,281 |  |

X
- References No definition available. + Details
Name: | us-gaap_BusinessCombinationsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of finite-lived intangible assets acquired as part of a business combination or through an asset purchase, by major class and in total, including the value of the asset acquired, any significant residual value (the expected value of the asset at the end of its useful life) and the weighted-average amortization period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275 + Details
Name: | us-gaap_ScheduleOfFiniteLivedIntangibleAssetsAcquiredAsPartOfBusinessCombinationTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration