Restructuring - Additional Information (Detail) (USD $)	3 Months Ended	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2014 Employee	Sep. 30, 2014
Restructuring Cost and Reserve [Line Items]
Total Expected Plan Costs	$ 15,000,000	15,000,000	$ 18,400,000
Total expected costs
Restructuring Cost and Reserve [Line Items]
Decrease in total expected plan costs	(3,400,000)
Total expected severance and related employee benefit costs
Restructuring Cost and Reserve [Line Items]
Decrease in total expected plan costs	$ (3,100,000)
2014 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Number of workforce expected to be reduced		777
2014 Restructuring Plan | Domestic
Restructuring Cost and Reserve [Line Items]
Number of workforce expected to be reduced		217
2014 Restructuring Plan | Asia Pacific
Restructuring Cost and Reserve [Line Items]
Number of workforce expected to be reduced		400
2014 Restructuring Plan | EMEA
Restructuring Cost and Reserve [Line Items]
Number of workforce expected to be reduced		141
2014 Restructuring Plan | Latin America
Restructuring Cost and Reserve [Line Items]
Number of workforce expected to be reduced		19