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This element represents the amount of recognized equity-based compensation during the period, that is, the amount recognized as expense in the income statement (or as asset if compensation is capitalized). Alternate captions include the words "stock-based compensation".

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- Definition

Amount of increase (decrease) in additional paid in capital (APIC) resulting from a tax benefit (deficiency) associated with an share-based compensation plan other than an employee stock ownership plan (ESOP).

+ References

No definition available.

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- Definition

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

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- Definition

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

+ References

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- Definition

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

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- Definition

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

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- Definition

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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- Definition

Value of shares issued during the period to an employee benefit plan, such as a defined contribution or defined benefit plan.

+ References

No definition available.

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- Definition

Aggregate value of stock related to Restricted Stock Awards issued during the period.

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- Definition

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

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- Definition

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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Consolidated Statements of Shareholders' Equity (USD $) In Thousands, unless otherwise specified	Total	Common Stock [Member]	Capital in Excess of Par Value [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Loss [Member]	Treasury Stock [Member]
Beginning Balance at Dec. 31, 2011	$ 490,404us-gaap_StockholdersEquity	$ 544	$ 51,477	$ 775,825	$ (166,741)	$ (170,701)
Net income	59,379us-gaap_NetIncomeLoss			59,379
Other comprehensive income (loss)	2,775				2,775
Comprehensive income (loss)	62,154us-gaap_ComprehensiveIncomeNetOfTax
Tax effect on exercise of stock awards	631		631
Cash dividends declared ($0.36, $0.40 and $0.44 per share at 2012, 2013 and 2014 respectively)	(15,611)us-gaap_DividendsCommonStockCash			(15,611)
Share-based compensation expense	3,970		3,970
Repurchase of common shares	(5,675)					(5,675)
Delivery of treasury shares
RSUs	(337)		(1,433)			1,096
401 (k) plans	2,446		234			2,212
Employee stock options exercised - net	1,697		(2,387)			4,084
Ending Balance at Dec. 31, 2012	539,679us-gaap_StockholdersEquity	544	52,492	819,593	(163,966)	(168,984)
Net income	67,158us-gaap_NetIncomeLoss			67,158
Other comprehensive income (loss)	88,609				88,609
Comprehensive income (loss)	155,767us-gaap_ComprehensiveIncomeNetOfTax
Tax effect on exercise of stock awards	1,451		1,451
Cash dividends declared ($0.36, $0.40 and $0.44 per share at 2012, 2013 and 2014 respectively)	(17,422)us-gaap_DividendsCommonStockCash			(17,422)
Share-based compensation expense	4,473		4,473
Delivery of treasury shares
RSUs	(529)		(1,763)			1,234
401 (k) plans	2,890		1,099			1,791
Employee stock options exercised - net	(1,833)		(3,812)			1,979
Ending Balance at Dec. 31, 2013	684,476us-gaap_StockholdersEquity	544	53,940	869,329	(75,357)	(163,980)
Net income	69,246us-gaap_NetIncomeLoss			69,246
Other comprehensive income (loss)	(79,513)				(79,513)
Comprehensive income (loss)	(10,267)us-gaap_ComprehensiveIncomeNetOfTax
Tax effect on exercise of stock awards	(14)		(14)
Cash dividends declared ($0.36, $0.40 and $0.44 per share at 2012, 2013 and 2014 respectively)	(19,107)us-gaap_DividendsCommonStockCash			(19,107)
Share-based compensation expense	4,738		4,738
Repurchase of common shares	(12,180)					(12,180)
Delivery of treasury shares
RSUs	(1,758)		(4,121)			2,363
401 (k) plans	3,093		1,318			1,775
Employee stock options exercised - net	128		(1,519)			1,647
Ending Balance at Dec. 31, 2014	$ 649,109us-gaap_StockholdersEquity	$ 544	$ 54,342	$ 919,468	$ (154,870)	$ (170,375)