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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Amount of increase in additional paid in capital (APIC) resulting from a tax benefit associated with share-based compensation plan other than an employee stock ownership plan (ESOP). Includes, but is not limited to, excess tax benefit.

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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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- Definition

Number of shares issued during the period related to Restricted Stock Awards, net of any shares forfeited.

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Number of shares (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 any shares forfeited. Shares 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 related to Restricted Stock Awards issued during the period, net of the stock value of such awards forfeited.

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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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Equity impact of the value of stock that has been repurchased and retired during the period. The excess of the purchase price over par value can be charged against retained earnings (once the excess is fully allocated to additional paid in capital).

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

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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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Condensed Consolidated Statements of Changes in Stockholders' Equity (USD $) In Millions, except Share data, unless otherwise specified	Total	Common Stock Issued [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Loss [Member]
Balance at Dec. 31, 2013	$ 561.4us-gaap_StockholdersEquity	$ 3.1	$ 43.3	$ 520.0	$ (5.0)
Balance (in shares) at Dec. 31, 2013		31,423,427
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	23.2us-gaap_NetIncomeLoss			23.2
Other comprehensive income (loss), net of tax	3.4				3.4
Dividends declared ($0.36 per share in 2014 and $0.38 per share in 2015)	(11.1)us-gaap_DividendsCommonStockCash			(11.1)
Restricted stock issuances, net	0		0
Restricted stock issuances, net (in shares)		198,180
Stock-based employee compensation expense	1.1		1.1
Excess tax benefits of stock-based employee compensation	0.6		0.6
Stock issued to directors as compensation	0		0
Stock issued to directors as compensation (in shares)		364
Purchases of treasury stock		(0.1)		52.2
Purchases of treasury stock (in shares)		(1,160,811)
Purchases and retirement of common stock	(52.3)
Balance at Mar. 31, 2014	526.3us-gaap_StockholdersEquity	3.0	45.0	479.9	(1.6)
Balance (in shares) at Mar. 31, 2014		30,461,160
Balance at Dec. 31, 2014	489.0us-gaap_StockholdersEquity	3.0	49.8	512.7	(76.5)
Balance (in shares) at Dec. 31, 2014		30,465,522
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	18.8us-gaap_NetIncomeLoss			18.8
Other comprehensive income (loss), net of tax	(59.4)
Dividends declared ($0.36 per share in 2014 and $0.38 per share in 2015)	(11.6)us-gaap_DividendsCommonStockCash			(11.6)
Restricted stock issuances, net	(0.6)	0	(0.6)
Restricted stock issuances, net (in shares)		36,091
Stock-based employee compensation expense	1.0		1.0
Excess tax benefits of stock-based employee compensation	0.4		0.4
Stock issued to directors as compensation	0		0
Stock issued to directors as compensation (in shares)		886
Purchases of treasury stock		0		2.9
Purchases of treasury stock (in shares)		(63,220)
Purchases and retirement of common stock	(2.9)
Balance at Mar. 31, 2015	$ 434.7us-gaap_StockholdersEquity	$ 3.0	$ 50.6	$ 517.0	$ (135.9)
Balance (in shares) at Mar. 31, 2015		30,439,279