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CONSOLIDATED STATEMENT OF CHANGES IN STOCKHOLDERS' EQUITY (Unaudited) - 3 months ended Mar. 31, 2017 - USD ($) $ in Thousands	Common Stock [Member]	Capital in Excess of Par Value [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Treasury Stock [Member]	Total
Balance at Dec. 31, 2016	$ 47,872	$ 96,850	$ 336,464	$ (11,028)	$ (29,130)	$ 441,028
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	0	0	15,734	0	0	15,734
Other comprehensive income, net of tax	0	0	0	2,688	0	2,688
Cash dividends paid	0	0	(4,338)	0	0	(4,338)
Purchase of treasury stock	0	0	0	0	(1,560)	(1,560)
Stock-based compensation	0	1,663	0	0	199	1,862
Employee Stock Ownership Plan	0	1,014	0	0	1,145	2,159
Balance at Mar. 31, 2017	$ 47,872	$ 99,527	$ 347,860	$ (8,340)	$ (29,346)	$ 457,573

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Value of shares committed to be released under an Employee Stock Ownership Plan (ESOP).

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Amount of paid and unpaid common stock dividends declared with the form of settlement in cash.

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Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.

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Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method.

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