Net (Loss) Income Per Common Share - Computation of Basic and Diluted Net (Loss) Income Per Share (Detail) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended	0 Months Ended	3 Months Ended	9 Months Ended	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012 Successor [Member]	Mar. 31, 2013 Successor [Member]	Dec. 31, 2012 Successor [Member]	Mar. 19, 2012 Predecessor [Member]
Numerator for basic and diluted net (loss) income per share:
Net (loss) income	$ (3,816)	$ 472	$ (3,816)	$ (12,353)	$ (3,433)
Less: Net (loss) income allocated to participating securities			(21)
Net (loss) income attributable to common shareholders		$ 472	$ (3,795)		$ (3,433)
Denominator for basic and diluted net (loss) income per share:
Weighted average share outstanding		200,000,000	201,156,078		1,000
Weighted average unvested restricted shares outstanding			(1,100,414)
Denominator for basic and diluted net (loss) income per share:		200,000,000	200,055,664		1,000
Basic and diluted net (loss) income per share attributable to common shareholders		$ 0.00	$ (0.02)		$ (3,433.00)