Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014
Condensed Consolidated Statements of Cash Flows
Net cash provided by (used in) operating activities	$ 23,407	$ (2,007)
Cash Flows from Investing Activities
Investments purchased	(196,468)	(129,559)
Investments sold	140,445	92,989
Investments called or matured	39,781	31,770
Net change in short-term investments	2,572	2,286
Net property and equipment purchased	(1,062)	(2,933)
Investment in equity method investee	(1,711)	(5,301)
Net cash used in investing activities	(16,443)	(10,748)
Cash Flows from Financing Activities
Cash dividends paid	(7,766)us-gaap_PaymentsOfDividendsCommonStock	(7,305)us-gaap_PaymentsOfDividendsCommonStock
Stock plan share issuance	330	1,123
Excess tax benefit from exercise of stock options	1,366	86
Net cash used in financing activities	(6,070)	(6,096)
Net increase (decrease) in cash	894	(18,851)
Cash at the beginning of the period	30,620	39,469
Cash at March 31	$ 31,514	$ 20,618

Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

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