Other Liabilities (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Components of other liabilities
Deferred compensation	$ 7,796	$ 8,209
Pension liability	16,000	15,003
Joint beneficiary agreements	2,305	2,323
Accrued legal settlement	2,090
Miscellaneous other liabilities	4,258	4,892
Total other liabilities	$ 32,449	$ 30,427