Financial Instruments (Tables)

9 Months Ended

Sep. 30, 2016

Fair Value Disclosures [Abstract]

Carrying Value and Estimated Fair Value of Financial Instruments

The following table presents the financial instruments that are not carried at fair value but which require fair value disclosure:

	December 31,				September 30,
	2015				2016
	Carrying		Fair		Carrying		Fair
	amount		value		amount		value
	(In thousands)
Cash and cash equivalents	$	52,347	$	52,347	$	45,371	$	45,371
Accounts receivable, net		8,760		8,760		13,040		13,040
Note receivable from affiliate		-		-		10,700		10,700
Accounts payable		2,671		2,671		3,472		3,472