Notes Payable (Tables)

12 Months Ended

Dec. 31, 2012

Notes Payable [Abstract]

Summary Of Indebtedness

The following is a summary of our indebtedness:

	December 31,
(in millions)	2012		2011
Senior unsecured notes
5.93% Notes, due 2012	$	—	$	189.6
5.45% Notes, due 2013	199.9		199.7
5.08% Notes, due 2015	249.5		249.3
5.75% Notes, due 2017	246.3		246.2
4.70% Notes, due 2021	248.7		248.6
3.07% Notes, due 2022	346.3		—
5.00% Notes, due 2023	247.5		247.3
	1,538.2		1,380.7
Secured notes
1.02% – 6.00% Conventional Mortgage Notes, due 2013 – 2045	934.6		1,012.3
1.37% Tax-exempt Mortgage Note, due 2028	37.7		39.1
	972.3		1,051.4
Total notes payable	$	2,510.5	$	2,432.1
Floating rate tax-exempt debt included in secured notes (1.37%)	$	37.7	$	39.1
Floating rate debt included in secured notes (1.02%)	175.0		206.4
Value of real estate assets, at cost, subject to secured notes	1,584.7		1,651.0

Scheduled Repayments On Outstanding Debt

Our indebtedness had a weighted average maturity of 7.0 years at December 31, 2012. Scheduled repayments on outstanding debt, including scheduled principal amortizations, and the weighted average interest rate on maturing debt at December 31, 2012 were as follows:

(in millions)	Amount		Weighted Average Interest Rate
2013	$	229.2	5.4	%
2014	35.4		3.2
2015	252.0		5.1
2016 (1)	2.3		—
2017	249.2		5.7
Thereafter	1,742.4		4.2
Total	$	2,510.5	4.5	%

(1) Includes only scheduled principal amortizations.