Income Taxes (Deferred Taxes) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Components of Deferred Tax Assets and Liabilities [Abstract]
Account receivables	$ 1,407	$ 1,304
Accounts payable and accrued expenses	440	2,496
Current deferred income tax assets, net	1,847	3,800
Net operating losses	557	730
Goodwill	(39,588)	(27,878)
Property and equipment	(20,411)	(14,885)
Deferred Compensation	1,018	1,294
Noncurrent deferred tax liabilities, net	(58,424)	(40,739)
Other Long-term Liability
Components of Deferred Tax Assets and Liabilities [Abstract]
Noncurrent deferred tax liabilities, net	$ 58,400	$ 40,700