Income Taxes - Narrative (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	9 Months Ended		15 Months Ended
	Sep. 30, 2013	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013
Operating Loss Carryforwards [Line Items]
Effective Income Tax Rate, Continuing Operations	31.20%	21.60%	40.60%	42.00%
Income Tax Expense (Benefit)	$ (3,736)	$ (1,497)	$ 17,724	$ 3,050
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest	$ (11,974)	$ (6,937)	$ 43,624	$ 7,255