Restructuring Restructuring by type and segment (Detail 2) (USD $)	3 Months Ended		12 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 500,000	$ 10,000,000
2014 Repositioning Actions [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	9,879,000		13,099,000
Restructuring charges	300,000		18,900,000
Restructuring Reserve, Utilization	(3,758,000)
Acquisition Related Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges			10,300,000
Payment and Merchandising Technologies
Restructuring Cost and Reserve [Line Items]
Restructuring charges	3,988,000
Payment and Merchandising Technologies | Acquisition Related Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	5,905,000		7,007,000
Restructuring Reserve, Utilization	(1,302,000)
Payment and Merchandising Technologies | Acquisition Related Restructuring [Member] | Operating Expense [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges	200,000
Payment and Merchandising Technologies | Employee Severance [Member] | Acquisition Related Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	5,905,000		7,007,000
Restructuring Reserve, Utilization	(1,102,000)
Payment and Merchandising Technologies | Employee Severance [Member] | Acquisition Related Restructuring [Member] | Operating Expense [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges	0
Payment and Merchandising Technologies | Other Restructuring [Member] | Acquisition Related Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	0		0
Restructuring Reserve, Utilization	(200,000)
Payment and Merchandising Technologies | Other Restructuring [Member] | Acquisition Related Restructuring [Member] | Operating Expense [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges	200,000
Fluid Handling | 2014 Repositioning Actions [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	8,045,000		10,682,000
Restructuring charges			7,800,000
Restructuring Reserve, Utilization	(2,637,000)
Fluid Handling | 2014 Repositioning Actions [Member] | Operating Expense [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges	0
Fluid Handling | Employee Severance [Member] | 2014 Repositioning Actions [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	8,018,000		10,655,000
Restructuring Reserve, Utilization	(2,637,000)
Fluid Handling | Employee Severance [Member] | 2014 Repositioning Actions [Member] | Operating Expense [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges	0
Fluid Handling | Other Restructuring [Member] | 2014 Repositioning Actions [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	27,000		27,000
Restructuring Reserve, Utilization	0
Fluid Handling | Other Restructuring [Member] | 2014 Repositioning Actions [Member] | Operating Expense [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges	0
Aerospace and Electronics
Restructuring Cost and Reserve [Line Items]
Restructuring charges	900,000	2,818,000
Aerospace and Electronics | 2014 Repositioning Actions [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	1,834,000		2,417,000
Restructuring charges			6,300,000
Restructuring Reserve, Utilization	(1,121,000)
Aerospace and Electronics | 2014 Repositioning Actions [Member] | Operating Expense [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges	538,000
Aerospace and Electronics | Employee Severance [Member] | 2014 Repositioning Actions [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	1,319,000		1,902,000
Restructuring Reserve, Utilization	(1,121,000)
Aerospace and Electronics | Employee Severance [Member] | 2014 Repositioning Actions [Member] | Operating Expense [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges	538,000
Aerospace and Electronics | Other Restructuring [Member] | 2014 Repositioning Actions [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	515,000		515,000
Restructuring Reserve, Utilization	0
Aerospace and Electronics | Other Restructuring [Member] | 2014 Repositioning Actions [Member] | Operating Expense [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges	0
cash-related restructuring [Member] | 2014 Repositioning Actions [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges	538,000		18,700,000
cash-related restructuring [Member] | Acquisition Related Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges			$ 10,200,000