Fair Value of Financial Instruments (Tables)

6 Months Ended

Jun. 30, 2015

Fair Value Disclosures [Abstract]

Fair Value of Long-Term Debt

	June 30, 2015				December 31, 2014
	Recorded Amount		Fair Value		Recorded Amount		Fair Value
	(In thousands)
Long-term debt	$	3,990,308	$	4,050,447	$	2,934,131	$	2,994,935