Non-vested stock which will be issued upon vesting.

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Non-vested stock which will be issued upon vesting, in shares.

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Equity impact of the value of stock that has been repurchased during the period and are held in treasury.

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

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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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Amount after tax and reclassification adjustments of other comprehensive income (loss).

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Number of shares of stock issued as of the balance sheet date, including shares that had been issued and were previously outstanding but which are now held in the treasury.

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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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This element represents movements included in the statement of changes in stockholders' equity which are not separately disclosed or provided for elsewhere in the taxonomy.

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Number of shares issued during the period as a result of an employee stock purchase plan.

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Number of shares of stock issued during the period that is attributable to transactions involving issuance of stock not separately disclosed.

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Number of share options (or share units) exercised during the current period.

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Aggregate change in value for stock issued during the period as a result of employee stock purchase plan.

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Value of stock (or other type of equity) issued during the period as a result of any equity-based compensation plan other than an employee stock ownership plan (ESOP), net of stock value of such awards forfeited. Stock issued could result from the issuance of restricted stock, the exercise of stock options, stock issued under employee stock purchase plans, and/or other employee benefit plans.

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Value of stock issued as a result of the exercise of stock options.

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Number of shares that have been repurchased during the period and are being held in treasury.

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Consolidated Statements of Shareholders' Equity (USD $) In Thousands, except Share data	Common Stock [Member]	Additional Paid-in Capital [Member]	Earnings Reinvested in the Business [Member]	Treasury Stock [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Total
Beginning Balance at Dec. 31, 2011	$ 5,396	$ 94,187	$ 1,069,610	$ (80,935)	$ (39,048)
Beginning Balance (in shares) at Dec. 31, 2011				4,038,011
Net earnings			123,908			123,908us-gaap_NetIncomeLoss
Other comprehensive income					34,463
Cash dividends paid			(43,426)
Share-based compensation		10,086
Stock options exercised		52		1,438
Stock options exercised (in shares)				(66,579)
Non-vested stock issued upon vesting		(6,999)		6,999
Non-vested stock issued upon vesting (in shares)				(313,812)
Benefit plans		388		480
Benefit plans (in shares)				(22,925)
Purchase of treasury stock				(23,154)
Purchase of treasury stock (in shares)				626,251
Other		539		(86)
Other (in shares)				3,875
Ending Balance at Dec. 31, 2012	5,396	98,253	1,150,092	(95,258)	(4,585)
Ending Balance (in shares) at Dec. 31, 2012				4,264,821
Net earnings			113,295			113,295us-gaap_NetIncomeLoss
Other comprehensive income					10,587
Cash dividends paid			(45,513)
Share-based compensation		8,430
Stock options exercised		(63)		1,063
Stock options exercised (in shares)				(47,584)
Non-vested stock issued upon vesting		(2,113)		2,113
Non-vested stock issued upon vesting (in shares)				(94,600)
Benefit plans		385		595
Benefit plans (in shares)				(26,635)
Other		227		(220)
Other (in shares)				9,825
Ending Balance at Dec. 31, 2013	5,396	105,119	1,217,874	(91,707)	6,002	1,242,684us-gaap_StockholdersEquity
Ending Balance (in shares) at Dec. 31, 2013				4,105,827
Net earnings			73,646			73,646us-gaap_NetIncomeLoss
Other comprehensive income					(91,130)
Cash dividends paid			(47,893)
Share-based compensation		6,265
Stock options exercised		(161)		753
Stock options exercised (in shares)				(27,001)
Non-vested stock issued upon vesting		(1,206)		1,206
Non-vested stock issued upon vesting (in shares)				(40,300)
Benefit plans		510		406
Benefit plans (in shares)				(18,185)
Purchase of treasury stock				(138,288)
Purchase of treasury stock (in shares)				2,500,000
Other		442		(299)
Other (in shares)				9,550
Ending Balance at Dec. 31, 2014	$ 5,396	$ 110,969	$ 1,243,627	$ (227,929)	$ (85,128)	$ 1,046,935us-gaap_StockholdersEquity
Ending Balance (in shares) at Dec. 31, 2014				6,529,891