Debt (Tables)

9 Months Ended

Sep. 30, 2016

Our debt consists of the following (in thousands):



	September 30, 2016		December 31, 2015
Debt payable, net to 2038 ⁽¹⁾	$	2,100,012	$	1,872,942
Unsecured notes payable under credit facilities	130,000		149,500
Debt service guaranty liability	69,835		69,835
Obligations under capital leases	21,000		21,000
Total	$	2,320,847	$	2,113,277

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(1)	At September 30, 2016, interest rates ranged from 1.7% to 8.6% at a weighted average rate of 4.0%. At December 31, 2015, interest rates ranged from 1.0% to 8.6% at a weighted average rate of 4.3%.

Grouping Of Debt Between Fixed And Variable As Well As Secured And Unsecured

The allocation of total debt between fixed and variable-rate as well as between secured and unsecured is summarized below (in thousands):



	September 30, 2016		December 31, 2015
As to interest rate (including the effects of interest rate contracts):
Fixed-rate debt	$	2,169,019	$	1,869,683
Variable-rate debt	151,828		243,594
Total	$	2,320,847	$	2,113,277
As to collateralization:
Unsecured debt	$	1,875,644	$	1,650,521
Secured debt	445,203		462,756
Total	$	2,320,847	$	2,113,277

Schedule Of Credit Facilities

The following table discloses certain information regarding our unsecured notes payable under our credit facilities (in thousands, except percentages):



	September 30, 2016			December 31, 2015
Unsecured revolving credit facility:
Balance outstanding	$	128,000		$	140,000
Available balance	367,140			355,190
Letters of credit outstanding under facility	4,860			4,810
Variable interest rate (excluding facility fee)	1.4		%	1.3		%
Unsecured short-term facility:
Balance outstanding	$	2,000		$	9,500
Variable interest rate (excluding facility fee)	1.8		%	1.7		%
Both facilities:
Maximum balance outstanding during the period	$	372,000		$	244,500
Weighted average balance	133,738			100,506
Year-to-date weighted average interest rate (excluding facility fee)	1.4		%	0.9		%

Principal Payments Of Debt

Scheduled principal payments on our debt (excluding $130.0 million unsecured notes payable under our credit facilities, $21.0 million of certain capital leases, $(6.3) million net premium/(discount) on debt, $(11.0) million of deferred debt costs, $5.3 million of non-cash debt-related items, and $69.8 million debt service guaranty liability) are due during the following years (in thousands):



2016 remaining	$	76,939
2017	86,710
2018	80,427
2019	56,245
2020	237,779
2021	17,667
2022	307,858
2023	305,705
2024	255,965
2025	303,314
Thereafter	383,329
Total	$	2,111,938