The Company - Additional Information (Detail) (USD $) In Millions, unless otherwise specified				6 Months Ended
Jun. 30, 2014 Maximum	Jun. 30, 2014 Minimum	Jul. 11, 2012 Channel Intelligence Maximum	Feb. 20, 2013 Channel Intelligence Minimum	Jun. 30, 2014 Metastorm
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Gain or Loss on sale					$ 2.7
Equity method investment, ownership percentage	50.00%	20.00%	52.00%	38.00%

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 323

-SubTopic 10

-Section 50

-Paragraph 3

-Subparagraph (a)(1)

-URI http://asc.fasb.org/extlink&oid=6382943&loc=d3e33918-111571

Name:	us-gaap_EquityMethodInvestmentOwnershipPercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant