Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2018

Fair Value Disclosures [Abstract]

Financial assets and liabilities measured at fair value on a recurring basis

The following fair value hierarchy table presents information about the Company’s financial assets and liabilities measured at fair value on a recurring basis:

(In thousands)	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Balance at    March 31, 2018
Assets
Deferred compensation plan	$	15,717	$	—	$	—	$	15,717
Derivative instruments	—		3,326		7,987		11,313
Total assets	$	15,717	$	3,326	$	7,987	$	27,030
Liabilities
Deferred compensation plan	$	27,605	$	—	$	—	$	27,605
Derivative instruments	—		—		8,002		8,002
Total liabilities	$	27,605	$	—	$	8,002	$	35,607

(In thousands)	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Balance at    December 31, 2017
Assets
Deferred compensation plan	$	14,966	$	—	$	—	$	14,966
Derivative instruments	—		—		2,239		2,239
Total assets	$	14,966	$	—	$	2,239	$	17,205
Liabilities
Deferred compensation plan	$	29,145	$	—	$	—	$	29,145
Derivative instruments	—		—		30,637		30,637
Total liabilities	$	29,145	$	—	$	30,637	$	59,782

Reconciliation of changes in the fair value of financial assets and liabilities classified as level 3

The following table sets forth a reconciliation of changes in the fair value of financial assets and liabilities classified as Level 3 in the fair value hierarchy:

	Three Months Ended   March 31,
(In thousands)	2018			2017
Balance at beginning of period	$	(28,398	)	$	(15,868	)
Total gain (loss) included in earnings	6,628			21,918
Settlement (gain) loss	21,755			(981		)
Transfers in and/or out of level 3	—			—
Balance at end of period	$	(15	)	$	5,069
Change in unrealized gains (losses) relating to assets and liabilities still held at the end of the period	$	2,217		$	20,937

Carrying amounts and fair values of debt

The carrying amount and fair value of debt is as follows:

	March 31, 2018						December 31, 2017
(In thousands)	Carrying Amount			Estimated Fair Value			Carrying Amount			Estimated Fair Value
Long-term debt	$	1,522,231		$	1,499,909		$	1,521,891		$	1,527,624
Current maturities	(304,000		)	(308,846		)	(304,000		)	(312,055		)
Long-term debt, excluding current maturities	$	1,218,231		$	1,191,063		$	1,217,891		$	1,215,569