Income Taxes (Narrative) (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2013
Income Tax Disclosure [Abstract]
Effective income tax rate, continuing operations	38.10%	38.00%	38.00%	38.40%
Quarterly provision for income taxes, description			In determining the quarterly provision for income taxes, management uses an estimated annual effective tax rate based on forecasted annual pre-tax income, permanent tax differences, statutory tax rates and tax planning opportunities in the various jurisdictions in which the Company operates. The impact of significant discrete items is separately recognized in the quarter(s) in which they occur.
Current deferred tax assets, net	$ 6,600,000		$ 6,600,000		$ 16,300,000
Long-term deferred tax liabilities, net	$ 186,538,000		$ 186,538,000		$ 154,763,000