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Share-Based Compensation (Details) (USD $) | 12 Months Ended
--- | ---
Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010
Share-Based Compensation [Abstract] |  |  |  |
Percent of market price (in hundredths) | 100.00% |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Shares available to be granted under existing stock plans (in shares) | 1,200,000 |  |  |
Aggregate intrinsic value [Abstract] |  |  |  |
Age participant attains for recognition of expenses from date of grant | 65 years |  |  |
Grant Date Weighted- Average Fair Value [Abstract] |  |  |  |
Total pre-tax share-based compensation recognized in the Consolidated Statements of Earnings | $ 8,400,000 | $ 10,100,000 | $ 7,800,000 |
Tax related benefits | 2,600,000 | 2,400,000 | 1,200,000 |
Cash received from the exercise of stock options | 1,000,000 | 1,500,000 | 2,600,000 |
Range of Exercise Price 1 [Member] |  |  |  |
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |  |  |  |
Exercise price range, lower range (in dollars per share) | $ 18.57 |  |  |
Exercise price range, upper range (in dollars per share) | $ 22.99 |  |  |
Options outstanding (in shares) | 36,000 |  |  |
Weighted-average remaining contractual life | 1 year 7 months 6 days |  |  |
Weighted-average exercise price (in dollars per share) | $ 19.62 |  |  |
Options exercisable (in shares) | 36,000 |  |  |
Weighted-average exercise price (in dollars per share) | $ 19.62 |  |  |
Range of Exercise Price 2 [Member] |  |  |  |
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |  |  |  |
Exercise price range, lower range (in dollars per share) |  | $ 23.00 |  |
Exercise price range, upper range (in dollars per share) |  | $ 26.11 |  |
Options outstanding (in shares) |  | 37,000 |  |
Weighted-average remaining contractual life |  | 1 year 8 months 12 days |  |
Weighted-average exercise price (in dollars per share) |  | $ 23.50 |  |
Options exercisable (in shares) |  | 37,000 |  |
Weighted-average exercise price (in dollars per share) |  | $ 23.50 |  |
Range of Exercise Price 3 [Member] |  |  |  |
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |  |  |  |
Exercise price range, lower range (in dollars per share) |  |  | $ 26.12 |
Exercise price range, upper range (in dollars per share) |  |  | $ 30.07 |
Options outstanding (in shares) |  |  | 20,000 |
Weighted-average remaining contractual life |  |  | 3 years 9 months 18 days |
Weighted-average exercise price (in dollars per share) |  |  | $ 28.16 |
Options exercisable (in shares) |  |  | 20,000 |
Weighted-average exercise price (in dollars per share) |  |  | $ 28.16 |
Nonvested Stock [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Expense recognition period (in years) | 5 years |  |  |
Aggregate intrinsic value [Abstract] |  |  |  |
Percentage of future grants that will be performance stock unit awards | 50.00% |  |  |
Number of years to measure performance metrics | 2 years |  |  |
Nonvested Stock [Roll Forward] |  |  |  |
Outstanding, Beginning (in shares) | 339,000 | 400,000 | 363,000 |
Granted (in shares) | 262,000 | 293,000 | 270,000 |
Vested (in shares) | (94,000) | (314,000) | (175,000) |
Cancelled (in shares) | (10,000) | (40,000) | (58,000) |
Outstanding, Ending (in shares) | 497,000 | 339,000 | 400,000 |
Grant Date Weighted- Average Fair Value [Abstract] |  |  |  |
Outstanding, Beginning (in dollars per share) | $ 33.22 | $ 31.42 | $ 29.20 |
Granted (in dollars per share) | $ 46.14 | $ 36.09 | $ 35.48 |
Vested (in dollars per share) | $ 40.57 | $ 33.59 | $ 34.04 |
Cancelled ( in dollars per share) | $ 42.22 | $ 33.41 | $ 28.45 |
Outstanding, Ending Balance (in dollars per share) | $ 38.46 | $ 33.22 | $ 31.42 |
Aggregate Intrinsic Value | 24,095,000 | 12,046,000 | 15,142,000 | 13,340,000
Total intrinsic values of shares vested | 4,400,000 | 11,200,000 | 6,200,000 |
Stock Options [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Expense recognition period (in years) | 3 years |  |  |
Expiration from date of grant (in years) | 10 years |  |  |
Stock Options [Roll Forward] |  |  |  |
Outstanding, beginning of period (in shares) | 141,000 | 207,000 | 328,000 |
Grants in period (in shares) | 0 | 0 | 0 |
Exercised (in shares) | (48,000) | (66,000) | (121,000) |
Outstanding, end of period (in shares) | 93,000 | 141,000 | 207,000 | 328,000
Exercisable, end of period (in shares) | 93,000 |  |  |
Weighted- Average Exercise Price [Abstract] |  |  |  |
Outstanding, beginning of period (in dollars per share) | $ 22.35 | $ 22.36 | $ 22.06 |
Exercised (in dollars per share) | $ 21.00 | $ 22.38 | $ 21.55 |
Outstanding, end of period (in dollars per share) | $ 23.04 | $ 22.35 | $ 22.36 | $ 22.06
Exercisable, end of period (in dollars per share) | $ 23.04 |  |  |
Weighted average remaining life [Abstract] |  |  |  |
Weighted average remaining life | 2 years 2 months 12 days | 2 years 8 months 12 days | 3 years 1 month 6 days | 3 years 10 months 24 days
Exercisable, weighted average remaining life | 2 years 2 months 12 days |  |  |
Aggregate intrinsic value [Abstract] |  |  |  |
Aggregate intrinsic value of stock options, outstanding | 2,374,000 | 1,859,000 | 3,222,000 | 4,807,000
Aggregate intrinsic values of stock options exercised | 1,100,000 | 900,000 | 1,700,000 |
Aggregate intrinsic value of stock options, exercisable | 2,374,000 |  |  |
Non vested stock and performance stock units [Member] |  |  |  |
Grant Date Weighted- Average Fair Value [Abstract] |  |  |  |
Compensation cost net yet recognized | $ 11,600,000 |  |  |
Compensation cost not yet recognized, period for recognition | 2 years 4 months 24 days |  |  |

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- Definition Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 14.F) -URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1)(i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 14 -Section F + Details
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- Definition The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Number of options outstanding, including both vested and non-vested options. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Amount by which the current fair value of the underlying stock exceeds the exercise price of fully vested and expected to vest options outstanding. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Purchase price of common stock expressed as a percentage of its fair value. + References No definition available. + Details
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- Definition Weighted average price at which option holders acquired shares when converting their stock options into shares. + References No definition available. + Details
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- Definition Weighted average exercise price as of the balance sheet date for those equity-based payment arrangements exercisable and outstanding. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The floor of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The number of shares reserved for issuance pertaining to the outstanding exercisable stock options as of the balance sheet date in the customized range of exercise prices for which the market and performance vesting condition has been satisfied. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(iii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The number of shares reserved for issuance pertaining to the outstanding stock options as of the balance sheet date for all option plans in the customized range of exercise prices. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The weighted average price as of the balance sheet date at which grantees could acquire the underlying shares with respect to all outstanding stock options which are in the customized range of exercise prices. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Weighted average remaining contractual term of outstanding stock options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The ceiling of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Number of share options (or share units) exercised during the current period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.28,29) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30 -Article 5 + Details
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