Commitments and Contingencies - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended				1 Months Ended	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Jan. 21, 2014 Subsequent	Aug. 20, 2012 Management Services	Dec. 31, 2012 Management Services	Dec. 31, 2011 Management Services	Dec. 31, 2013 Management Services Maximum	Dec. 31, 2011 Management Services Maximum
Commitment And Contingencies [Line Items]
Accrued rent balance for office leases	$ 947	$ 476
Accrued expenses	125	42
Other accrued long-term liabilities	822	434
Total rent expense	3,041	1,652	1,387
Future minimum payments under non-cancelable data center agreements	3,338
Future minimum payments under non-cancelable data center agreements, due in 2014	2,190
Future minimum payments under non-cancelable data center agreements, due in 2015	1,148
Purchase commitments	8,840
Purchase commitments payable on 2014	7,177
Purchase commitments payable on 2015	1,613
Purchase commitments payable on 2016	50
Accrued potential litigation settlement				525,000
Consideration payment per consulting agreement								15,000	15,000
Professional services expense					$ 7,800	$ 5,303	$ 2,217