Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2016

Fair Value Disclosures [Abstract]

Valuation of money market funds and restricted cash using quoted market prices in active markets for identical assets

Our recurring fair value measurements consist of the following:

	June 30, 2016		December 31, 2015
	(In thousands)
Cash equivalent money market funds (Level 1)	$	129,072	$	81,473
Restricted cash money market funds (Level 1)	2,000		2,000

Financial instruments that are not recorded at fair value

The following table presents the fair value of financial instruments that are not recorded at fair value on a recurring basis:

	June 30, 2016				December 31, 2015
	Fair Value		Carrying Value		Fair Value		Carrying Value
	(In thousands)
Senior notes (Level 1)	$	919,771	$	921,752	$	902,563	$	921,384
Revolving credit facilities and term loans (Level 2)	702,696		714,967		664,085		665,655
Total debt	$	1,622,467	$	1,636,719	$	1,566,648	$	1,587,039