Credit Risk and Fair Value of Financial Instruments Level 3 (Tables)

12 Months Ended

Dec. 31, 2020

Credit Risk and Fair Value of Financial Instruments [Abstract]

Fair Value, Measurement Inputs, Disclosure [Table Text Block]

The fair value of our debt instruments was as follows:

	Years Ended December 31,
	2020		2019
	(In thousands)
8.0% Senior Notes due November 2021	$	159,000	$	165,375
5.375% Senior Notes due May 2024	—		879,606
7.5% Notes due April 2027	185,639		188,381
4.625% Senior Notes due December 2027	590,700		577,500
5.125% Senior Notes due June 2029	840,368		798,525
3.375% Senior Notes due August 2030	883,099		—
Term Loan due May 2024	601,250		633,750
Bank Credit Facility due May 2024	525,000		295,000
Mortgage notes and other debt, maturities through 2050	51,659		45,104
Total fair value of debt instruments	$	3,836,715	$	3,583,241