Fair Value of Financial Instruments (Tables)

3 Months Ended

Mar. 31, 2015

Fair Value of Financial Instruments [Abstract]

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]

The fair values of our financial instruments as of March 31, 2015 are presented in the following table:

	Fair Value Measurements Using
(in thousands)	Level 1		Level 2		Fair Value
Financial Assets:
Cash and cash equivalents	$	89,706	$	—	$	89,706
Restricted cash	—		12,214		12,214
Marketable securities	21,950		—		21,950
Total Financial Assets	$	111,656	$	12,214	$	123,870
Financial Liabilities:
Total debt	$	—	$	1,319,710	$	1,319,710
Derivatives:
Liability for interest rate swap agreements	$	—	$	7,312	$	7,312

The fair values of our financial instruments as of December 31, 2014 are presented in the following table:

	Fair Value Measurements Using
(in thousands)	Level 1		Level 2		Fair Value
Financial Assets:
Cash and cash equivalents	$	104,677	$	—	$	104,677
Restricted cash	—		12,360		12,360
Marketable securities	22,264		—		22,264
Total Financial Assets	$	126,941	$	12,360	$	139,301
Financial Liabilities:
Total debt	$	—	$	1,323,201	$	1,323,201
Derivatives:
Liability for interest rate swap agreements	$	—	$	3,781	$	3,781

Fair Value Measurements, Nonrecurring [Table Text Block]

The following table presents non-financial instruments were measured at fair value, on a nonrecurring basis, as of March 31, 2015 and impairment losses for the three months ended March 31, 2015:

	As of March 31, 2015
(in thousands)	Fair Value Measurements Using						Impairment Losses
	Level 1		Level 2		Level 3		For the Three Months Ended March 31, 2015
Property and equipment, net	$	—	$	—	$	—	$	58

The following table presents non-financial instruments were measured at fair value, on a nonrecurring basis, as of March 31, 2014 and impairment losses for the three months ended March 31, 2014:

	As of March 31, 2014
(in thousands)	Fair Value Measurements Using						Impairment Losses
	Level 1		Level 2		Level 3		For the Three Months Ended March 31, 2014
Property and equipment, net	$	—	$	—	$	—	$	148
Investment in affiliates, net	—		—		—		360
	$	—	$	—	$	—	$	508