Fair Value Measurements (Tables)

9 Months Ended

Sep. 30, 2015

Fair Value Disclosures [Abstract]

Summary of Financial Assets and Liabilities Accounted for at Fair Value

The table below sets forth, by level, the Company’s financial assets and liabilities that are recorded at fair value in the accompanying condensed consolidated balance sheet: 

	September 30, 2015
	Total		Level 1		Level 2		Level 3
	(In thousands)
Assets:
Investments in marketable securities	$	201,346	$	1,615	$	199,731	$	—
Derivatives	14,628		8,322		890		5,416
Total assets	$	215,974	$	9,937	$	200,621	$	5,416
Liabilities:
Derivatives	$	536	$	—	$	536	$	—

Summary of Change in the Fair Values of Financial Instruments Categorized as Level 3

The following table summarizes the change in the fair values of financial instruments categorized as level 3.

	Three Months Ended September 30, 2015			Nine Months Ended September 30, 2015
	(In thousands)
Balance, beginning of period	$	7,840		$	3,040
Realized and unrealized losses recognized in earnings, net	(4,200		)	(6,028		)
Realized and unrealized gains recognized in other comprehensive income, net	—			(1,341		)
Purchases	2,334			11,959
Issuances	(558		)	(2,214		)
Ending balance	$	5,416		$	5,416