Schedule of Disposal Groups Including Discontinued Excluded from Non Current Assets (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Intangible Assets:
Intangibles, net	$ 58,755	$ 61,687
Investor Force
Valuation And Qualifying Accounts Disclosure [Line Items]
Goodwill		700
Intangible Assets:
Intangibles, net
Channel Intelligence
Valuation And Qualifying Accounts Disclosure [Line Items]
Goodwill		48,900
Intangible Assets:
Intangibles, net		22,400
Procurian
Valuation And Qualifying Accounts Disclosure [Line Items]
Goodwill		30,500
Intangible Assets:
Intangibles, net		12,100
Customer Relationships | Investor Force
Intangible Assets:
Intangibles, net
Customer Relationships | Channel Intelligence
Intangible Assets:
Intangibles, net		9,500
Customer Relationships | Procurian
Intangible Assets:
Intangibles, net		8,800
Trademarks/trade names | Investor Force
Intangible Assets:
Intangibles, net
Trademarks/trade names | Channel Intelligence
Intangible Assets:
Intangibles, net		6,700
Trademarks/trade names | Procurian
Intangible Assets:
Intangibles, net		800
Technology | Investor Force
Intangible Assets:
Intangibles, net
Technology | Channel Intelligence
Intangible Assets:
Intangibles, net		2,700
Technology | Procurian
Intangible Assets:
Intangibles, net		1,900
Service Agreements | Investor Force
Intangible Assets:
Intangibles, net
Service Agreements | Channel Intelligence
Intangible Assets:
Intangibles, net		3,500
Service Agreements | Procurian
Intangible Assets:
Intangibles, net
Non-compete agreements | Investor Force
Intangible Assets:
Intangibles, net
Non-compete agreements | Channel Intelligence
Intangible Assets:
Intangibles, net		0
Non-compete agreements | Procurian
Intangible Assets:
Intangibles, net		500
Intellectual property | Investor Force
Intangible Assets:
Intangibles, net
Intellectual property | Channel Intelligence
Intangible Assets:
Intangibles, net		0
Intellectual property | Procurian
Intangible Assets:
Intangibles, net		$ 100