Summary of Significant Accounting Policies - Summary of Effects of New Guidance on Consolidated Balance Sheets and Statements of Comprehensive Income (Loss) (Detail) (USD $) In Thousands, unless otherwise specified	6 Months Ended		12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2012	Jun. 30, 2011	Jun. 30, 2010
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Total deferred revenue				$ 74,646
Revenues:
Subscription	64,886	33,191	204,526	79,191	40,078
Professional services and other	8,489	4,753	39,186	13,450	3,251
Total revenues	73,375	37,944	243,712	92,641	43,329
Impact of Adoption of ASU 2009-13 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Total deferred revenue				(6,390)
Revenues:
Subscription				886
Professional services and other				5,504
Total revenues				6,390
Under Previous Accounting Guidance [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Total deferred revenue				81,036
Revenues:
Subscription				78,305
Professional services and other				7,946
Total revenues				$ 86,251