Income Taxes - Narrative (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended	65 Months Ended		12 Months Ended			12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011 ownership	Dec. 31, 2013	Dec. 31, 2013 Internal Revenue Service (IRS) [Member]	Dec. 31, 2010 Internal Revenue Service (IRS) [Member]	Aug. 31, 2006 Internal Revenue Service (IRS) [Member]	Dec. 31, 2013 State and Local Jurisdiction [Member]	Dec. 31, 2010 State and Local Jurisdiction [Member]
Operating Loss Carryforwards [Line Items]
Unrecognized tax benefits	$ 714	$ 678	$ 899
Net operating losses				208,131			202,100
Operating loss carryforwards, expiration dates				2026			2015
Number of changes in ownership		2
Operating loss carryforwards decrease					83,503	1,900		46,243
Valuation allowance	80,347		102,949
Expense (benefit) from foreign income tax expense	5
Total deferred tax assets	$ 80,347		$ 102,949