Indebtedness (Tables)

3 Months Ended

Mar. 31, 2018

Debt Disclosure [Abstract]

Debt Outstanding

We had the following debt outstanding as of the dates shown below (bank debt interest rate at March 31, 2018 is shown parenthetically). No interest was capitalized during the three months ended March 31, 2018 or the year ended December 31, 2017 (in thousands).

		March 31, 2018			December 31, 2017
Bank debt (3.4%)	$	1,182,000		$	1,211,000
Senior notes:
4.875% senior notes due 2025		750,000			750,000
5.00% senior notes due 2023		741,531			741,531
5.00% senior notes due 2022		580,032			580,032
5.75% senior notes due 2021		475,952			475,952
5.875% senior notes due 2022		329,244			329,244
Other senior notes due 2022		590			590
Total senior notes		2,877,349			2,877,349
Senior subordinated notes:
5.00% senior subordinated notes due 2023		7,712			7,712
5.00% senior subordinated notes due 2022		19,054			19,054
5.75% senior subordinated notes due 2021		22,214			22,214
Total senior subordinated notes		48,980			48,980
Total debt		4,108,329			4,137,329
Unamortized premium		5,712			6,027
Unamortized debt issuance costs		(32,347	)		(34,550	)
Total debt net of debt issuance costs	$	4,081,694		$	4,108,806

Summary of Senior Notes Principal Subsequent to Debt Exchange

In September 2016, in conjunction with the MRD Merger, we issued $329.2 million senior unsecured 5.875% notes due 2022 (the “5.875% Notes”). In addition, we also completed a debt exchange offer to exchange senior subordinated notes for the following senior notes (in thousands):

		Principal Amount
5.00% senior notes due 2023	$	741,531
5.00% senior notes due 2022	$	580,032
5.75% senior notes due 2021	$	475,952