Employee Benefit Plan - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	6 Months Ended	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2013	Dec. 31, 2012	Jun. 30, 2011
Schedule Of Sale Of Subsidiary [Abstract]
Defined contribution plan employer matching contribution percent for three percent of employee contribution		100.00%
Initial employee salary percentage with full employer contribution		3.00%
Defined contribution plan employer matching contribution percent for two percent of employee contribution		50.00%
Additional employee salary percentage with partly employer contribution		2.00%
Company's contributions to Plan	$ 0.3	$ 0.6	$ 0.6	$ 0.6