Credit Risk and Fair Value of Financial Instruments (Tables)

6 Months Ended

Jun. 30, 2018

Credit Risk and Fair Value of Financial Instruments [Abstract]

Fair Value, Measurement Inputs, Disclosure

The fair value of our debt instruments at June 30, 2018 and December 31, 2017 was as follows:

	June 30, 2018		December 31, 2017
	(In thousands)
7.625% Senior Notes due October 2018	$	—	$	259,563
4.5% Senior Notes due November 2020	199,842		199,590
8.0% Senior Notes due November 2021	165,300		175,313
5.375% Senior Notes due January 2022	428,612		436,178
5.375% Senior Notes due May 2024	867,178		892,118
7.5% Senior Notes due April 2027	222,222		238,004
4.625% Senior Notes due December 2027	518,562		558,250
Term Loan due December 2022	666,563		675,000
Bank Credit Facility due December 2022	370,000		—
Mortgage notes and other debt, maturities through 2050	5,845		6,036
Total fair value of debt instruments	$	3,444,124	$	3,440,052