Our long-term debt is summarized below (in thousands):



	June 30, 2017			Dec. 31, 2016

Unsecured floating rate term loan due quarterly through August 2018	$	36,300		$	52,100
VIE unsecured floating rate term loans due quarterly through December 2018	969			1,292
Unsecured floating rate term loan due quarterly through June 2020	120,000			140,000
Unsecured floating rate term loan due quarterly through September 2020	255,000			285,000
Borrowings under revolving credit agreement expiring June 2020	—			635,000
Unsecured notes bearing fixed rate interest at 5.125% due October 2019	600,000			600,000
Unsecured notes bearing fixed rate interest at 5.125% due July 2020	600,000			600,000
Unsecured notes bearing fixed rate interest at 4.875% due September 2021	350,000			350,000
Unsecured notes bearing fixed rate interest at 6.375% due October 2023	650,000			650,000
Unsecured notes bearing fixed rate interest at 5.50% due September 2024	325,000			325,000
Unsecured notes bearing fixed rate interest at 7.75% due June 2027	200,000			200,000
Unsecured notes bearing fixed rate interest at 7.25% due September 2027	240,000			240,000
Total principal long-term debt	3,377,269			4,078,392
Debt issuance costs	(24,873		)	(27,615		)
Other (fair market value adjustments and discounts)	(5,764		)	(7,382		)
Total long-term debt	3,346,632			4,043,395
Less current portion of long-term debt maturities of VIE loans	646			646
Long-term debt, net of current portion	$	3,345,986		$	4,042,749