Annual report pursuant to Section 13 and 15(d)

COMMITMENTS AND CONTINGENCIES - Additional Information (Detail)

v2.4.0.6
COMMITMENTS AND CONTINGENCIES - Additional Information (Detail)
In Millions, unless otherwise specified
 1 Months Ended 12 Months Ended 12 Months Ended
May 31, 2011
USD ($)
May 31, 2011
CAD
Dec. 31, 2012
USD ($)
Dec. 31, 2011
USD ($)
Dec. 31, 2010
USD ($)
Dec. 31, 2012
Guarantees
Dec. 31, 2012
Maximum
USD ($)
Dec. 31, 2012
Data Processing, Outsourcing Services And Other Agreements
Minimum
USD ($)
Dec. 31, 2012
Data Processing, Outsourcing Services And Other Agreements
Maximum
USD ($)
Commitments and Contingencies Disclosure [Line Items]                  
Rental expense for operating leases     $ 22.3 $ 22.0 $ 20.5        
Service agreements expiration year               2013 2018
Estimated aggregate minimum contractual obligation                 70.0
Expected future year's minimum contractual obligation     60.0       30.0 40.0  
Service agreements expiration date     Dec. 31, 2016 Dec. 31, 2014          
Service agreements expiration period         3 years        
Cash paid for data processing, outsourcing services and other agreements     70.5 79.7 61.1        
Severance benefit term     In the event of a qualifying termination, the executive will become entitled to continuation of group health, dental, vision, life, disability, 401(k) and similar benefits for three years, as well as a lump sum severance payment, all of which differs by executive.            
Qualifying termination, continuation of benefits for executives     3 years            
Qualifying termination, continuation of benefits for executives, automatic renewal     3 years            
Conditional payment for unrecognized severance benefit for key executives     48.1            
Assumed tax on expected payment for unrecognized severance benefit for key executives     26.6            
Performance bonds and standby letters of credit remaining maturity date           one year or less      
Tax settlements with CRA 1.1 1.1              
Deposit Liabilities, Accrued Interest $ 9.9 9.7              
Potential Percentage Of Stock Acquired With Change In Control     any person acquires 20% or more of our voting stock