Investment Securities (Other Investments Table) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2013
Other investments
FRB stock	$ 55,435	$ 55,294	$ 55,294
FHLB stock	92,547	125,032	214,586
Other	439	477	489
Total other investments	$ 148,421	$ 180,803	$ 270,369

Federal Home Loan Bank (FHLB) stock represents an equity interest in a FHLB. It does not have a readily determinable fair value because its ownership is restricted and it lacks a market (liquidity).

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Federal Reserve Bank stock represents an equity interest in the Federal Reserve Bank. It does not have a readily determinable fair value because its ownership is restricted and it lacks a market (liquidity).

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Other investments not otherwise specified in the taxonomy.

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Other long-term investments not otherwise specified in the taxonomy, not including investments in marketable securities.

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