Quarterly report pursuant to Section 13 or 15(d)

Acquisitions (Details)

v3.2.0.727
Acquisitions (Details) - USD ($)
$ in Millions
Apr. 27, 2015
Jul. 31, 2014
Jun. 16, 2014
BLA [Member]      
Business Acquisition [Line Items]      
Business Acquisition, Percentage of Voting Interests Acquired 100.00%    
Net cash consideration paid to acquire business $ 8.8    
BLA [Member] | Trade names [Member]      
Business Acquisition [Line Items]      
Indefinite-lived Intangible Assets Acquired 0.8    
BLA [Member] | Customer relationships [Member]      
Business Acquisition [Line Items]      
Finite-lived Intangible Assets Acquired $ 0.6    
Acquired finite-lived intangible assets, weighted average useful life 7 years    
Bell [Member]      
Business Acquisition [Line Items]      
Business Acquisition, Percentage of Voting Interests Acquired   100.00%  
Net cash consideration paid to acquire business   $ 11.9  
Goodwill, Acquired During Period   0.9  
Bell [Member] | Customer relationships [Member]      
Business Acquisition [Line Items]      
Finite-lived Intangible Assets Acquired   $ 2.0  
Acquired finite-lived intangible assets, weighted average useful life   8 years  
Whale [Member]      
Business Acquisition [Line Items]      
Business Acquisition, Percentage of Voting Interests Acquired     100.00%
Net cash consideration paid to acquire business     $ 29.6
Goodwill, Acquired During Period     7.9
Payments to retire acquiree debt     10.0
Fair value of identifiable intangible assets acquired     11.9
Whale [Member] | Trade names [Member]      
Business Acquisition [Line Items]      
Indefinite-lived Intangible Assets Acquired     3.7
Whale [Member] | Customer relationships [Member]      
Business Acquisition [Line Items]      
Finite-lived Intangible Assets Acquired     $ 6.1
Acquired finite-lived intangible assets, weighted average useful life     14 years
Whale [Member] | Patents and proprietary technology [Member]      
Business Acquisition [Line Items]      
Finite-lived Intangible Assets Acquired     $ 2.1
Acquired finite-lived intangible assets, weighted average useful life     5 years