Other Liabilities (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Components of other liabilities
Deferred compensation	$ 7,738	$ 8,209
Pension liability	16,345	15,003
Joint beneficiary agreements	2,736	2,323
Accrued legal settlement	2,090
Miscellaneous other liabilities	6,213	4,892
Total other liabilities	$ 35,122	$ 30,427