Corporate Restructuring and Other Organizational Changes - Additional Information (Detail) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Restructuring Cost and Reserve [Line Items]
Employee termination costs (adjustments)	$ 0	$ 3,200,000	$ 1,300,000	$ 6,000,000
Restructuring severance costs			$ 2,700,000
Liability is expected to be paid			12 months
Unpaid severance liability	1,000,000		$ 1,000,000
Remaining liability paid to employees	800,000		800,000
Employee termination costs paid during the period				6,300,000
Restructuring charges	1,314,000		1,314,000		$ 2,793,000
Other Noncurrent Liabilities [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges	200,000		200,000
Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges	1,000,000		1,000,000		2,341,000
Employee Compensation [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges	800,000		800,000
Facility Closures [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 314,000		314,000		$ 452,000
Americas [Member]
Restructuring Cost and Reserve [Line Items]
Employee termination costs (adjustments)		1,700,000	700,000	3,800,000
Asia/Pacific [Member]
Restructuring Cost and Reserve [Line Items]
Employee termination costs (adjustments)		500,000		1,000,000
EMEA [Member]
Restructuring Cost and Reserve [Line Items]
Employee termination costs (adjustments)		$ 1,000,000	$ 600,000	$ 1,200,000