Costs Associated with Exit or Disposal Activities - Summary of Exit and Restructuring Costs Incurred (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011 ZES [Member]	Dec. 31, 2012 Severance, stay bonuses, and other employee-related expenses [Member]	Dec. 31, 2011 Severance, stay bonuses, and other employee-related expenses [Member] ZES [Member]	Dec. 31, 2012 Professional services [Member]	Dec. 31, 2011 Professional services [Member] ZES [Member]	Dec. 31, 2012 Relocation and transition costs [Member]	Dec. 31, 2011 Relocation and transition costs [Member] ZES [Member]	Dec. 31, 2012 Location Solution And Manufacturing Operations [Member]
Restructuring Cost and Reserve [Line Items]
Severance, stay bonuses, and other employee-related expenses	$ 960	$ 1,113
Professional services	0	890
Relocation and transition costs	0	38
Total	960	2,041
Additional costs expected to be incurred		0	4,590	0	310	0	480	0	5,380
Total costs expected to be incurred		$ 2,041	$ 5,550	$ 1,113	$ 310	$ 890	$ 480	$ 38	$ 6,340