Schedule II -Valuation Accounts (Detail) (USD $) In Thousands, unless otherwise specified	5 Months Ended	7 Months Ended	12 Months Ended		5 Months Ended	7 Months Ended	12 Months Ended
	May 28, 2010 Allowance for Doubtful Accounts [Member] Predecessor [Member]	Dec. 31, 2010 Allowance for Doubtful Accounts [Member] Successor [Member]	Dec. 31, 2012 Allowance for Doubtful Accounts [Member] Successor [Member]	Dec. 31, 2011 Allowance for Doubtful Accounts [Member] Successor [Member]	May 28, 2010 Allowance for Obsolete/Excess Inventory [Member] Predecessor [Member]	Dec. 31, 2010 Allowance for Obsolete/Excess Inventory [Member] Successor [Member]	Dec. 31, 2012 Allowance for Obsolete/Excess Inventory [Member] Successor [Member]	Dec. 31, 2011 Allowance for Obsolete/Excess Inventory [Member] Successor [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance	$ 514		$ 641	$ 520	$ 7,145		$ 7,406	$ 11,010
Additions charged to cost and expense	26	18	643	81	954	553	1,264	395
Deductions from Merger Transaction								(2,279)
Additions from Merger Transaction						951
Deductions from acquired company				98				(193)
Additions from acquired company		59				2,411
Others	8	89	179	58	21	983	1,726	1,527
Balance	$ 532	$ 520	$ 1,105	$ 641	$ 8,078	$ 11,010	$ 6,944	$ 7,406