Note 12 - Notes Payable (Tables)

12 Months Ended

Dec. 31, 2015

Debt Disclosure [Abstract]

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

	Balance at 12/31/15			Interest Rate Range (Low)		Interest Rate Range (High)		Maturity Date Range (Low)	Maturity Date Range (High)
Senior Unsecured Notes	$	2,290.9			3.13%		6.88%	May-2017	Apr-2045
Medium Term Notes		600.0			4.30%		5.78%	Mar-2016	Feb-2018
U.S. Term Loan (a)		650.0			(a)		(a)	Jan-2017	Jan-2017
Canadian Notes Payable		251.8			3.86%		5.99%	Apr-2018	Aug-2020
Credit Facility (b)		-			(b)		(b)	Apr-2018	Apr-2018
Deferred financing costs, net (c)		(31.4	)		-		-	-	-
	$	3,761.3

	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 (d)		400.0			(d)		(d)	Apr-2015	Apr-2015
Canadian Notes Payable		301.3			3.86%		5.99%	Apr-2018	Aug-2020
Credit Facility (b)		100.0			(b)		(b)	Apr-2018	Apr-2018
Deferred financing costs, net (c)		(20.5	)		-		-	-	-
	$	3,171.7

Schedule of Debt [Table Text Block]

Type	Date Issued	Amount Repaid		Interest Rate		Maturity Date	Date Paid
MTN	Nov-05	$	150.0		5.584%	Nov-15	Nov-15
Senior Note	Oct-06	$	100.0		5.25%	Sep-15	Sep-15
MTN	Feb-05	$	100.0		4.904%	Feb-15	Feb-15
MTN	Jun-05	$	194.6		4.82%	Jun-14	Jun-14
Senior Note	Oct-06	$	100.0		5.95%	Jun-14	Jun-14