Debt (Tables)

6 Months Ended

Jun. 30, 2016

Our debt consists of the following (in thousands):



	June 30, 2016		December 31, 2015
Debt payable, net to 2038 ⁽¹⁾	$	1,863,401	$	1,872,942
Unsecured notes payable under credit facilities	98,000		149,500
Debt service guaranty liability	69,835		69,835
Obligations under capital leases	21,000		21,000
Total	$	2,052,236	$	2,113,277

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(1)	At June 30, 2016, interest rates ranged from 1.7% to 8.6% at a weighted average rate of 4.2%. 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):



	June 30, 2016		December 31, 2015
As to interest rate (including the effects of interest rate contracts):
Fixed-rate debt	$	1,924,649	$	1,869,683
Variable-rate debt	127,587		243,594
Total	$	2,052,236	$	2,113,277
As to collateralization:
Unsecured debt	$	1,597,315	$	1,650,521
Secured debt	454,921		462,756
Total	$	2,052,236	$	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):



	June 30, 2016			December 31, 2015
Unsecured revolving credit facility:
Balance outstanding	$	95,000		$	140,000
Available balance	400,190			355,190
Letters of credit outstanding under facility	4,810			4,810
Variable interest rate (excluding facility fee)	1.3		%	1.3		%
Unsecured short-term facility:
Balance outstanding	$	3,000		$	9,500
Variable interest rate (excluding facility fee)	1.8		%	1.7		%
Both facilities:
Maximum balance outstanding during the period	$	200,000		$	244,500
Weighted average balance	128,381			100,506
Year-to-date weighted average interest rate (excluding facility fee)	1.3		%	0.9		%

Principal Payments Of Debt

Scheduled principal payments on our debt (excluding $98.0 million unsecured notes payable under our credit facilities, $21.0 million of certain capital leases, $(4.3) million net premium/(discount) on debt, $(9.4) million of deferred debt costs, $5.6 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	$	78,835
2017	86,839
2018	87,974
2019	56,245
2020	237,779
2021	17,667
2022	307,858
2023	305,705
2024	255,965
2025	303,314
Thereafter	133,329
Total	$	1,871,510