Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2014

Fair Value Disclosures [Abstract]

Fair Value, by Balance Sheet Grouping

The following table presents the carrying amount and estimated fair values of financial instruments held by the Company at December 31, 2014 and 2013, using market information and what the Company believes to be appropriate valuation methodologies under generally accepted accounting principles:

	2014			2013
Asset (liability)	Carrying Amount	Fair Value		Carrying Amount	Fair Value
		Level 1	Level 2		Level 1	Level 2
Cash and cash equivalents	$161,558	$161,558	—	$199,644	$199,644	—
Restricted cash (a)	6,688	6,688	—	68,944	68,944	—
Current maturities of long-term debt	(129,706)	—	(156,762)	(112,500)	—	(119,614)
Long-term debt	(621,849)	—	(628,476)	(1,461,724)	—	(1,489,810)
Interest rate swaps (b)	(7,247)	—	(7,247)	(4,659)	—	(4,659)
Foreign currency exchange contracts (b)	(304)	—	(304)	940	—	940
Foreign currency option contracts (b)	(1,138)	—	(1,138)	467	—	467
Fuel hedge contracts (b)	—	—	—	160	—	160

(a) Restricted cash is recorded in “Other Assets” and represents the proceeds from LKE sales deposited with a third-party intermediary.

(b) See Note 6 — Derivative Financial Instruments and Hedging Activities for information regarding the Balance Sheet classification of the Company’s derivative financial instruments.