Restructuring Activities - Additional Information (Detail) (USD $)	0 Months Ended	12 Months Ended
	Sep. 16, 2013	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Business Acquisition [Line Items]
Restructuring expected cost	$ 12,000,000
Restructuring expenses		9,665,000	0	1,050,000
Restructuring accrual		9,170,000
Additional inventory reserve recorded		4,900,000
Facility Closing [Member]
Business Acquisition [Line Items]
Restructuring expected cost		2,200,000
Employee Severance [Member]
Business Acquisition [Line Items]
Restructuring expected cost		$ 9,700,000