Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2015

fair value in the accompanying balance sheets as of June 30, 2015 and December 31, 2014, respectively, were as follows:



	As of June 30, 2015
	Level 1		Level 2		Total
	(In thousands)
Assets:
Investments	$	—	$	7,450	$	7,450
Demand obligations	$	—	$	112	$	112
Total	$	—	$	7,562	$	7,562
Liabilities:
Interest rate derivative financial instruments	$	—	$	29,871	$	29,871
Total	$	—	$	29,871	$	29,871



	As of December 31, 2014
	Level 1		Level 2		Total
	(In thousands)
Assets:
Investments	$	—	$	12,283	$	12,283
Demand obligations	$	—	$	20,304	$	20,304
Total	$	—	$	32,587	$	32,587
Liabilities:
Interest rate derivative financial instruments	$	—	$	28,653	$	28,653
Total	$	—	$	28,653	$	28,653