Business and Basis of Presentation (Detail) - Preliminary Allocation of Purchase Price) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013		Mar. 07, 2014 Software Advice, Inc.
Assets:
Cash				$ 1,450
Fees receivable and other current assets				3,785
Property, equipment, and leasehold improvements				234
Amortizable intangible assets				29,690	[1]
Goodwill	589,786	519,203	[2]	70,936	[1]
Total assets				106,095
Liabilities:
Accounts payable and accrued liabilities				2,875
Total liabilities				$ 2,875

[1] See Note 6 - Goodwill and Intangible Assets for additional information.

[2] The Company does not have any accumulated goodwill impairment losses.