Debt (Tables)

3 Months Ended

Mar. 31, 2014

Our debt consists of the following (in thousands):



	March 31, 2014		December 31, 2013
Debt payable to 2038 at 2.6% to 8.6%	$	1,841,427	$	2,205,104
Unsecured notes payable under credit facilities	159,900		—
Debt service guaranty liability	73,740		73,740
Obligations under capital leases	21,000		21,000
Total	$	2,096,067	$	2,299,844

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

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



	March 31, 2014		December 31, 2013
As to interest rate (including the effects of interest rate contracts):
Fixed-rate debt	$	1,823,554	$	2,136,265
Variable-rate debt	272,513		163,579
Total	$	2,096,067	$	2,299,844
As to collateralization:
Unsecured debt	$	1,416,500	$	1,572,057
Secured debt	679,567		727,787
Total	$	2,096,067	$	2,299,844

Schedule Of Credit Facilities

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



	March 31, 2014			December 31, 2013
Unsecured revolving credit facility:
Balance outstanding	$	158,000		$	—
Available balance	338,946			497,821
Letters of credit outstanding under facility	3,054			2,179
Variable interest rate (excluding facility fee)	0.8		%	—		%
Unsecured and uncommitted overnight facility:
Balance outstanding	$	1,900		$	—
Variable interest rate	1.5		%	—		%
Both facilities:
Maximum balance outstanding during the period	$	165,900		$	265,500
Weighted average balance	121,227			61,642
Year-to-date weighted average interest rate (excluding facility fee)	0.8		%	1.0		%

Principal Payments Of Debt

Scheduled principal payments on our debt (excluding $159.9 million due under our credit facilities, $21.0 million of certain capital leases, $4.9 million fair value of interest rate contracts, $(3.3) million net premium/(discount) on debt, $4.9 million of non-cash debt-related items, and $73.7 million debt service guaranty liability) are due during the following years (in thousands):



2014 remaining	$	48,650
2015	239,941
2016	249,441
2017	142,032
2018	60,277
2019 ⁽¹⁾	153,907
2020	35,363
2021	2,278
2022	304,815
2023	301,937
Thereafter	296,327
Total	$	1,834,968

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(1)	Includes $100 million of our 8.1% senior unsecured notes due 2019 which may be redeemed by us at any time on or after September 2014 at our option.