Acquisitions (DSS Acquisition) - Business Combination Transfer Consideration (Detail) (DSS Group Inc [Member], USD $) In Millions, unless otherwise specified	0 Months Ended	3 Months Ended
	Dec. 12, 2014	Apr. 04, 2015
Business Acquisition [Line Items]
Cash paid to sellers		$ 449.7
Deferred consideration		8.9
Cash paid on behalf of sellers for sellers expenses		25.3
Cash paid to retire term loan on behalf of sellers		317.3
Total consideration	1,246.0	950.0
Convertible Preferred Shares [Member]
Business Acquisition [Line Items]
Preferred Shares		116.1
Non-convertible Preferred Shares [Member]
Business Acquisition [Line Items]
Preferred Shares		$ 32.7