Fair Value Measurement of Assets and Liabilities - Additional Information (Detail)	3 Months Ended	9 Months Ended
	Sep. 30, 2017 USD ($)	Sep. 30, 2017 USD ($)	Dec. 31, 2016 USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration (income) loss from adjustments	$ (1,700,000)	$ 1,500,000
Contingent payments made		13,700,000
Fair value adjustment of contingent consideration		3,600,000
Goodwill impairment charge		32,700,000
Goodwill	$ 10,904,900,000	10,904,900,000	$ 10,643,900,000
Reporting units with goodwill assigned to them	6
Office Based Technologies [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Goodwill impairment charge	$ 32,700,000	32,700,000
Product Category Operating Segments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Goodwill impairment charge		32,700,000
Goodwill	1,327,800,000	1,327,800,000	$ 1,258,400,000
Product Category Operating Segments [Member] | Office Based Technologies [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Goodwill impairment charge	32,700,000
Goodwill	$ 0	$ 0