Income Taxes (Unrecognized Tax Benefits) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Reconciliation of Unrecognized Income Tax Benefits
Beginning Balance	$ 5,985	$ 6,315
Additions based on tax positions related to current year	227	275
Additions for tax positions of prior years	175	0
Reductions for tax positions of prior years	(2,774)	(605)
Statute of limitation expirations	(1,068)	0
Settlements	(1,425)	0
Ending Balance	$ 1,120	$ 5,985