Condensed Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Current assets:
Allowance for doubtful accounts	$ 0	$ 0
Allowance for doubtful accounts, noncurrent	$ 270,000	$ 0
Stockholders' Equity:
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized	10,000,000	10,000,000
Preferred stock, shares issued	0	0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized	50,000,000	50,000,000
Common stock, shares issued	27,841,840	27,710,775
Common stock, shares outstanding	27,520,648	27,393,045
Treasury stock, shares	(317,731)	(317,731)