Summary of Significant Accounting Policies - Additional Information (Detail) (USD $)	12 Months Ended
	Dec. 31, 2013 Unit Segment Customer	Dec. 31, 2012	Dec. 31, 2011	Jun. 30, 2012
Summary Of Significant Accounting Policies [Line Items]
Maturity period of cash and cash equivalent	Three months or less
Cash equivalent balances consisted in money market funds	$ 4,100,000	$ 4,100,000
Estimated economic life of product	3 years
Capitalized amount in product development cost	493,000	235,000
Amortization Expense	327,000	156,000	39,000
Purchase of intellectual property	200,000
Lease abandonment			2,230,000
Short-term portion of lease abandonment accrual	475,000	580,000
Long term lease abandonment accrual	760,000	1,179,000
Number of operating segment for business activities	1
Number of reporting units for goodwill allocation	3
Standard payment terms to customers	30 days
Losses recognized on fixed-price contracts	0	0	0
Recognition of the gross margin on the transaction, period	3 years
Maintenance fee revenue recognition period	1 year
Purchase of software and intellectual property				3,250,000
Amount of license consideration and subsequent development and training services				3,250,000
License related revenue	2,500,000	788,000
Software modules contract expected revenue recognized after expiration	0
Diluted computation increased	507,000	1,700,000	3,600,000
Share-based awards outstanding under equity plans	4,009,028	4,109,537	3,730,573
Excess customer balance from receivables	0	0
Customer balances excess percentage of total receivables balance	10.00%	10.00%
Customer threshold percentage of total receivables or total service revenue	10.00%	10.00%	10.00%
Number of largest customers	5
Aggregate service revenue	16.50%	14.80%	11.10%
Edgewater Fullscope [Member]
Summary Of Significant Accounting Policies [Line Items]
License related revenue	$ 2,500,000	$ 788,000
Minimum [Member]
Summary Of Significant Accounting Policies [Line Items]
Property and equipment estimated useful lives	3 years
Acquired intangible assets useful lives	1 year 6 months
Warranty period on fixed-price contracts	30 days
Maximum [Member]
Summary Of Significant Accounting Policies [Line Items]
Property and equipment estimated useful lives	10 years
Acquired intangible assets useful lives	7 years 6 months
Warranty period on fixed-price contracts	60 days