Debt

The Company does not have indebtedness as debt is incurred by the Operating Partnership. The Company guarantees the Operating Partnership’s unsecured debt including the revolving credit facilities for the full term of such debt.

Debt consists of the following ($ in thousands):



	March 31, 2016			December 31, 2015			Weighted Average Maturity In Years
Unsecured bonds private placement - fixed rate	$	314,003		$	463,891		4.4
Term loan - variable rate	224,551			224,467			0.7
Bonds public offering - fixed rate	2,397,909			2,400,322			6.5
Unsecured debt, net ⁽¹⁾	2,936,463			3,088,680
Lines of credit, net ⁽²⁾	164,282			11,707
Mortgage notes payable, net ⁽³⁾	2,252,057			2,215,077			5.6
Total debt, net	$	5,352,802		$	5,315,464
Weighted average interest rate on fixed rate unsecured and unsecured private placement bonds	3.6		%	3.6		%
Weighted average interest rate on variable rate term loan	2.4		%	2.4		%
Weighted average interest rate on lines of credit	1.8		%	1.9		%
Weighted average interest rate on mortgage notes payable	4.4		%	4.4		%

(1) Includes unamortized premium and discounts of $11.3 million and $14.3 million and reduced by unamortized debt issuance costs of $14.8 million and $15.6 million, as of March 31, 2016 and December 31, 2015, respectively.

(2) Lines of credit, net, includes unamortized debt issuance costs of $4.1 million and $3.3 million as of March 31, 2016 and December 31, 2015.

(3) Includes unamortized premium of $64.5 million and $64.8 million and reduced by unamortized debt issuance costs of $8.1 million and $8.0 million, as of March 31, 2016 and December 31, 2015, respectively.

The aggregate scheduled principal payments of the Company’s outstanding debt as of March 31, 2016 are as follows (excluding lines of credit) (in thousands):



Remaining in 2016	$	222,803
2017	564,851
2018	321,328
2019	661,954
2020	693,868
Thereafter	2,670,852
	$	5,135,656