Note 12 - Notes Payable (Tables)

12 Months Ended

Dec. 31, 2014

Debt Disclosure [Abstract]

Schedule of Long-term Debt Instruments [Table Text Block]

		Balance at 12/31/14	Interest Rate Range (Low)	Interest Rate Range (High)	Maturity Date Range (Low)	Maturity Date Range (High)
Senior Unsecured Notes	$	1,540.9	3.13%	6.88%	Sep-2015	Jun-2023
Medium Term Notes		850.0	4.30%	5.78%	Feb-2015	Feb-2018
U.S. Term Loan (e)		400.0	(a)	(a)	Apr-2015	Apr-2015
Canadian Notes Payable		301.3	3.86%	5.99%	Apr-2018	Aug-2020
Credit Facility		100.0	(b)	(b)	Apr-2018	Apr-2018
	$	3,192.2

		Balance at 12/31/13	Interest Rate Range (Low)	Interest Rate Range (High)	Maturity Date Range (Low)	Maturity Date Range (High)
Senior Unsecured Notes	$	1,140.9	3.13%	6.88%	Jun-2014	Jun-2023
Medium Term Notes		1,044.6	4.30%	5.78%	Jun-2014	Feb-2018
U.S. Term Loan (d)		400.0	(a)	(a)	Apr-2014	Apr-2014
Canadian Notes Payable		329.5	3.86%	5.99%	Apr-2018	Aug-2020
Credit Facility		194.5	(a)	(a)	Oct-2015	Oct-2015
Mexican Term Loan		76.5	(c)	(c)	Mar-2018	Mar-2018
	$	3,186.0

Schedule of Debt [Table Text Block]

Type	Date Issued	Amount Repaid		Interest Rate		Maturity Date	Date Paid
MTN	Jun-05	$	194.6		4.82%	Jun-14	Jun-14
Senior Note	Oct-06	$	100.0		5.95%	Jun-14	Jun-14
MTN	Oct-03	$	100.0		5.19%	Oct-13	Oct-13
Senior Note	Oct-06	$	75.0		4.70%	Jun-13	Jun-13
Senior Note	Oct-06	$	100.0		6.125%	Jan-13	Jan-13