DEBT (Tables)

3 Months Ended

Mar. 31, 2020

DEBT [Abstract]

Debt

	Effective	March 31	December 31	March 31
in thousands	Interest Rates	2020	2019	2019
Short-term Debt
Bank line of credit expires 2021 1		$                  0	$                0	$     178,500
Total short-term debt		$                  0	$                0	$     178,500
Long-term Debt
Bank line of credit expires 2021 1		$                  0	$                0	$                0
Floating-rate notes due 2020 2	2.13%	250,000	250,000	250,000
Floating-rate notes due 2021 2	2.51%	500,000	500,000	500,000
8.85% notes due 2021	8.88%	6,000	6,000	6,000
4.50% notes due 2025	4.65%	400,000	400,000	400,000
3.90% notes due 2027	4.00%	400,000	400,000	400,000
7.15% notes due 2037	8.05%	129,239	129,239	129,239
4.50% notes due 2047	4.59%	700,000	700,000	700,000
4.70% notes due 2048	5.42%	460,949	460,949	460,949
Other notes	6.46%	179	185	202
Total long-term debt - face value		$    2,846,367	$  2,846,373	$  2,846,390
Unamortized discounts and debt issuance costs		(60,776)	(62,033)	(65,777)
Total long-term debt - book value		$    2,785,591	$  2,784,340	$  2,780,613
Less current maturities		25	25	24
Total long-term debt - reported value		$    2,785,566	$  2,784,315	$  2,780,589
Estimated fair value of long-term debt		$    2,926,140	$  3,073,693	$  2,775,511

1	Borrowings on the bank line of credit are classified as short-term if we intend to repay within twelve months and as long-term if we have the intent and ability to extend payment beyond twelve months.
2	This debt is classified as long-term since we intend to refinance it and have the ability to do so by borrowing on our $750,000,000 delayed draw term loan that closed April 10, 2020.

Standby Letters of Credit

in thousands
Standby Letters of Credit
Risk management insurance	$       47,031
Reclamation/restoration requirements	7,098
Total	$       54,129