Information about Geographic Areas - Revenues by Geographic Area, Based on Billing Location of Customer (Detail) (USD $) In Thousands, unless otherwise specified	6 Months Ended				12 Months Ended
	Dec. 31, 2011		Dec. 31, 2010		Dec. 31, 2013		Dec. 31, 2012		Jun. 30, 2011
Segment Reporting Information [Line Items]
Percentage of North America Revenues	92.00%		97.00%		94.00%		94.00%		96.00%
Revenues by geography
Revenues	$ 73,375		$ 37,944		$ 424,650		$ 243,712		$ 92,641
North America
Revenues by geography
Revenues	51,901	[1]	27,919	[1]	295,400	[1]	173,001	[1]	69,333	[1]
EMEA
Revenues by geography
Revenues	18,842	[2]	8,693	[2]	105,177	[2]	60,579	[2]	20,093	[2]
Asia Pacific and other
Revenues by geography
Revenues	$ 2,632		$ 1,332		$ 24,073		$ 10,132		$ 3,215

[1] Revenues attributed to the United States were approximately 94% of North America revenues for each of the years ended December 31, 2013 and 2012, 92% and 97% for the six months ended December 31, 2011 and 2010 (unaudited), respectively, and 96% for fiscal 2011.

[2] Europe, the Middle East and Africa, or EMEA