Business Segments - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 27, 2014	Sep. 28, 2013	Sep. 27, 2014	Sep. 28, 2013
Segment Reporting Information [Line Items]
Merger and acquisition related costs		$ 5.1	$ 1.3	$ 26.2
Integration costs associated with the Merger	1.6	12.2	7.8	30.9
Decrease in segment profit due to non-cash inventory step-up amortization	439.8	374.4	1,224.3	1,069.4
Construction and Do It Yourself
Segment Reporting Information [Line Items]
Decrease in segment profit due to non-cash inventory step-up amortization	0.1	3.1	0.7	9.2
Securities Industry
Segment Reporting Information [Line Items]
Decrease in segment profit due to non-cash inventory step-up amortization	0.3	11.9	3.8	27.1
Industrial Segment
Segment Reporting Information [Line Items]
Decrease in segment profit due to non-cash inventory step-up amortization	1.2	2.3	4.6	20.8
Corporate Overhead
Segment Reporting Information [Line Items]
Merger and acquisition related costs	$ 6.6	$ 19.9	$ 12.1	$ 59.6