Income Taxes Income Taxes-Unrecognized Tax Benefit (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Reconciliation of Unrecognized Tax Benefits [Roll Forward]
Balance at beginning of year	$ 1,148	$ 1,057	$ 4,003
Additions based on tax positions related to the current year	233	347	311
Additions for tax positions of prior years	53	49	38
Reductions for tax positions of prior years	0	0	(2,849)
Settlements or lapse of statute of limitations	(177)	(305)	(446)
Balance at end of year	$ 1,257	$ 1,148	$ 1,057