Related Person Transactions Related Person (Narrative) (Details) In Thousands, unless otherwise specified	3 Months Ended			9 Months Ended							3 Months Ended	9 Months Ended			3 Months Ended		9 Months Ended
	Sep. 30, 2012 USD ($)	Sep. 30, 2012 EUR (€)	Sep. 30, 2011 USD ($)	Sep. 30, 2012 USD ($) D	Sep. 30, 2011 USD ($)	Dec. 31, 2011 USD ($)	Sep. 30, 2012 Long-term Debt [Member] USD ($)	Sep. 30, 2012 Long-term Debt [Member] EUR (€)	Dec. 31, 2011 Long-term Debt [Member] USD ($)	Dec. 31, 2011 Long-term Debt [Member] EUR (€)	Sep. 30, 2012 Parent Company [Member] USD ($)	Sep. 30, 2012 Parent Company [Member] USD ($)	Sep. 30, 2011 Parent Company [Member] USD ($)	Dec. 31, 2011 Parent Company [Member] USD ($)	Sep. 30, 2012 Corporate Joint Venture [Member] USD ($)	Sep. 30, 2011 Corporate Joint Venture [Member] USD ($)	Sep. 30, 2012 Corporate Joint Venture [Member] USD ($)	Sep. 30, 2011 Corporate Joint Venture [Member] USD ($)	Dec. 31, 2011 Corporate Joint Venture [Member] USD ($)
Related Party Transaction [Line Items]
Related Party Transaction, Rate				0.25%
Long-term Debt	$ 180,000			$ 180,000		$ 200,000	$ 140,000	€ 29,000	$ 140,000	€ 45,000
Repayments of Long-term Debt	20,000	16,000
Payment of prepayment penalty	803			803	0
Write off of Deferred Debt Issuance Cost	451		277	451	1,176
Interest Expense, Related Party	4,126		4,690	13,232	16,244
Revolving Credit Facility, Maximum Borrowing Capacity	0			0
Loss on early retirement of debt	1,254		277	1,254	1,176
Loans and Leases Receivable, Related Parties											319,518	319,518		168,450	19,048		19,048		10,277
Weighted Average Interest Rate of Time Deposits, $100,000 or More, Three Months or Less	0.40%	0.40%		0.40%
Maturity Date Range Start, Investment				7
Maturity Date Range End, Investment				34
Interest and Other Income											$ 292	$ 1,014	$ 193		$ 20	$ 9	$ 47	$ 19