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Guarantees (Narrative) (Detail)
$ in Millions
Dec. 31, 2014
USD ($)
Surety Bond [Member]  
Guarantee Obligations [Line Items]  
Guarantees Obligations $ 47.7
Commercial standby letters of credit [Member]  
Guarantee Obligations [Line Items]  
Guarantees Obligations 113.9
Bank Guarantees [Member]  
Guarantee Obligations [Line Items]  
Guarantees Obligations 55.1
Bank Guarantees Collaterized [Member]  
Guarantee Obligations [Line Items]  
Guarantees Obligations $ 15.2