Pre tax compensation expense related to director fees, annual retainers, and deferred compensation amortization.

No definition available.

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- Definition

Weighted average purchase price of capital shares purchased through an employee stock purchase plan.

+ References

No definition available.

+ Details

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- Definition

Number of Stock Benefit Plans

+ References

No definition available.

+ Details

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- Definition

Share Based Compensation Arrangement By Share Based Payment Award, Additional Installment of Annual Cash Retainer

+ References

No definition available.

+ Details

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- Definition

Share Based Compensation Arrangement By Share Based Payment Award, Admission Grant

+ References

No definition available.

+ Details

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Contractual Term of Award

+ References

No definition available.

+ Details

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Options, Grants in Period, Aggregate Grant Date Market Value

+ References

No definition available.

+ Details

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- Definition

Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Forfeited In Period, Fair Value

+ References

No definition available.

+ Details

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- Definition

Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Granted In Period, Fair Value

+ References

No definition available.

+ Details

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- Definition

Share Based Compensation Arrangement By Share Based Payment Award, Options, Aggregate Grant Date Fair Value

+ References

No definition available.

+ Details

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures Fair Value

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No definition available.

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- Definition

Share-Based Compensation Arrangement By Share-Based Payment Award, Options, Number Available To Vest

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No definition available.

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Options, Returned for Payroll Taxes

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No definition available.

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- Definition

Share-Based Compensation Arrangement By Share-Based Payment Award, Options, Vesting, Common Stock Price

+ References

No definition available.

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Quarterly Installment of Annual Cash Retainer

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No definition available.

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- Definition

Share Based Compensation Arrangement By Share Based Payment Award, Quarterly Retainer

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No definition available.

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other Than Options, Grants in Period, Aggregate Grant Date Market Value

+ References

No definition available.

+ Details

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- Definition

Amount of decrease to equity for grantee's tax withholding obligation for award under share-based payment arrangement.

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No definition available.

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Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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Aggregate dividends paid during the period for each share of common stock outstanding.

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Aggregate dividends declared during the period for each share of common stock outstanding.

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Face amount or stated value per share of common stock.

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The maximum number of common shares permitted to be issued by an entity's charter and bylaws.

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Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.

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Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.

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

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Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

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Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Amount of cash inflow from exercise of option under share-based payment arrangement.

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The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

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Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event.

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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).

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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).

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Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options.

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The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.

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The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

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- Definition

The risk-free interest rate assumption that is used in valuing an option on its own shares.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

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Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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Number of options or other stock instruments for which the right to exercise has lapsed under the terms of the plan agreements.

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The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.

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The grant-date intrinsic value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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Gross number of share options (or share units) granted during the period.

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The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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The increase or decrease in number of shares reserved for issuance under stock option agreements awarded under the plan that validly exist and are outstanding, including vested options.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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Amount by which current fair value of underlying stock exceeds exercise price of fully vested and expected to vest exercisable or convertible options. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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Number of fully vested and expected to vest exercisable options that may be converted into shares under option plan. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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An excess of the fair value of the modified award over the fair value of the award immediately before the modification.

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Weighted average price at which option holders acquired shares when converting their stock options into shares.

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Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

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Number of non-vested options outstanding.

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No definition available.

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Weighted average grant-date fair value of non-vested options forfeited.

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No definition available.

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Fair value of options vested. Excludes equity instruments other than options, for example, but not limited to, share units, stock appreciation rights, restricted stock.

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Weighted average grant-date fair value of options vested.

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No definition available.

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Purchase price of common stock expressed as a percentage of its fair value.

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No definition available.

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Number of shares used to settle grantee's tax withholding obligation for award under share-based payment arrangement.

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No definition available.

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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 related to Restricted Stock Award forfeited during the period.

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

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Stockholders' Equity (Narrative) (Details)													3 Months Ended												12 Months Ended
Stockholders' Equity (Narrative) (Details)	Apr. 01, 2022 $ / shares	Feb. 23, 2022 $ / shares shares	Feb. 19, 2022 USD ($) shares	Nov. 29, 2021 $ / shares	Sep. 15, 2021 $ / shares	Aug. 12, 2021 $ / shares	Jun. 01, 2021 USD ($) $ / shares	Apr. 16, 2021 $ / shares	Feb. 17, 2021 shares	Jun. 25, 2020 shares	May 19, 2020 shares	Feb. 19, 2020 USD ($) shares	Dec. 31, 2022 USD ($) plan $ / shares shares	Sep. 30, 2022 USD ($) $ / shares	Jun. 30, 2022 USD ($) $ / shares	Mar. 31, 2022 USD ($) $ / shares shares	Dec. 31, 2021 USD ($) $ / shares shares	Sep. 30, 2021 USD ($) $ / shares	Jun. 30, 2021 USD ($) $ / shares	Mar. 31, 2021 USD ($) $ / shares	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2025 shares	Dec. 31, 2022 USD ($) plan $ / shares shares	Dec. 31, 2021 USD ($) $ / shares shares	Dec. 31, 2020 USD ($) $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock, shares authorized (in shares) \| shares													80,000,000				80,000,000									80,000,000	80,000,000
Common stock, par value (in dollars per share) \| $ / shares													$ 0.01				$ 0.01									$ 0.01	$ 0.01
Common stock, shares issued (in shares) \| shares													26,359,876				26,264,245									26,359,876	26,264,245
Treasury Stock, Shares \| shares													11,627,818				10,932,322									11,627,818	10,932,322
Stock options awarded (in shares) \| shares																										381,000
Grants, weighted average exercise price (in usd per share) \| $ / shares																										$ 8.86
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Exercisable, Number \| shares													201,000													201,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Expirations in Period \| shares																										43,000
Unrecognized share based compensation cost													$ 235,000													$ 235,000
Unrecognized share based compensation, expected term (in years)																										9 months 18 days
Issuance of common stock from employee stock purchase plan (in shares) \| shares																										52,053	61,904	71,908
Weighted average purchase price of ESPP shares purchased during the period (in dollars per share) \| $ / shares																										$ 32.38	$ 26.32	$ 16.71
Dividends declared per share (in dollars per share) \| $ / shares													$ 0.1125	$ 0.1125	$ 0.1125	$ 0.1125										$ 0.4500	$ 0.4125	$ 0.3375
Dividends declared, common stock, amount													$ 1,655,000	$ 1,653,000	$ 1,730,000	$ 1,725,000	$ 1,873,000	$ 1,783,000	$ 1,808,000	$ 1,799,000
Common Stock, Dividends, Per Share, Cash Paid \| $ / shares																	$ 0.1125	$ 0.1000	$ 0.1000	$ 0.1000
Number of Stock Benefit Plans \| plan													2													2
Exercise of stock options, shares \| shares																										32,196	423,294	40,365
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Period Increase (Decrease) \| shares																										18,797	211,088	18,640
Share-based Compensation Arrangement by Share-based Payment Award, Options, Returned for Payroll Taxes \| shares																										2,895	43,534	2,954
Exercisable at end of year (in usd per share) \| $ / shares													$ 27.60													$ 27.60
Exercised (in usd per share) \| $ / shares																										$ 25.49	$ 21.99	$ 13.72
Common stock outstanding (in shares) \| shares													14,732,058				15,331,923									14,732,058	15,331,923
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value \| $ / shares																										$ 17.03
Canceled or expired (in usd per share) \| $ / shares																										$ 11.43
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Nonvested, Number of Shares \| shares													976,000				839,000									976,000	839,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value \| $ / shares													$ 12.83				$ 9.90									$ 12.83	$ 9.90
Grants, weighted average exercise price (in usd per share) \| $ / shares																										48.89
Good to Great Incentive Program
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options awarded (in shares) \| shares			27,448									17,991															0
Total intrinsic value of options exercised			$ 1,358,000,000									$ 449,000,000															$ 0
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Grant Date Intrinsic Value \| $ / shares																										$ 49.48		$ 25.00
Employee Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Exercisable, Aggregate Intrinsic Value													$ 1,200,000													$ 1,200,000
Contractual term of all options granted																										7 years
Stock options awarded (in shares) \| shares		310,000							701,400	20,000						58,500										12,600
Total intrinsic value of options exercised																										$ 580,000	8,229,000	$ 517,000
Total fair value of stock options vested																										1,784,000	1,413,000	735,000
Unrecognized share based compensation cost													$ 9,500,000													$ 9,500,000
Unrecognized share based compensation, expected term (in years)																										5 years
Share-based Payment Arrangement, Decrease for Tax Withholding Obligation																										$ 123,000	2,272,000	89,000
Proceeds from Stock Options Exercised																										60,000	1,013,000	19,000
Share based compensation expense																										$ 2,284,000	$ 2,355,000	$ 669,000
Dividend yield		0.91%							1.15%	1.67%						0.91%										1.43%
Expected volatility		34.35%							36.72%	38.54%						33.18%										43.68%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate		1.98%							0.57%	0.25%						1.89%										4.29%
Employee Stock Option \| Black-Scholes
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options awarded (in shares) \| shares																										58,500	701,400	0
Value of stock options granted																										$ 959,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Options, Grants in Period, Aggregate Grant Date Market Value																											$ 7,115,000	$ 0
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period \| shares																										45,590	74,688	146,034
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures Fair Valueriod																										$ 512,000	$ 722,000	$ 846,000
Grants, weighted average exercise price (in usd per share) \| $ / shares																										$ 49.48	$ 34.79
Employee Stock Option \| Monte-Carlo Pricing Model
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options awarded (in shares) \| shares																										0	150,000	0
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Options, Grants in Period, Aggregate Grant Date Market Value																										$ 0	$ 1,684,000	$ 0
Grants, weighted average exercise price (in usd per share) \| $ / shares																											$ 34.79
Employee Stock Option \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Contractual term of all options granted																										10 years
Employee Stock Option \| Maximum \| Monte-Carlo Pricing Model
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-Based Compensation Arrangement By Share-Based Payment Award, Options, Number Available To Vest \| shares																	100,000										100,000
Share-Based Compensation Arrangement By Share-Based Payment Award, Options, Vesting, Common Stock Price \| $ / shares																	$ 77.34										$ 77.34
Employee Stock Option \| Minimum \| Monte-Carlo Pricing Model
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-Based Compensation Arrangement By Share-Based Payment Award, Options, Number Available To Vest \| shares																	50,000										50,000
Share-Based Compensation Arrangement By Share-Based Payment Award, Options, Vesting, Common Stock Price \| $ / shares																	$ 53.39										$ 53.39
Employee Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Purchase price percentage of grant date price per share (as a percent)																										85.00%
Share based compensation expense																										$ 545,000	$ 552,000	$ 434,000
Dividend yield																										0.01%	0.01%	1.50%
Expected volatility																										30.20%	48.10%	48.60%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate													40.00%	31.00%	22.00%	8.00%	10.00%	10.00%	9.00%	9.00%	156.00%	157.00%	157.00%	154.00%
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Cancellations ( in usd per share) \| $ / shares																										$ 32.28
Cancellations (in shares) \| shares																										(1,950)
Share based compensation expense																										$ 171,000	$ 390,000	$ 735,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value \| $ / shares													$ 31.05				$ 27.21									$ 31.05	$ 27.21
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards (in shares) \| shares																										0	9,300	10,200
Awards granted, aggregate grant date market value																										$ 0	$ 324,000	$ 255,000
Share-based Payment Arrangement, Shares Withheld for Tax Withholding Obligation \| shares																										4,136	10,399	10,588
Share-based Payment Arrangement, Decrease for Tax Withholding Obligation																										$ 205,000	$ 375,000	$ 250,000
Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Forfeited In Period, Fair Value																										$ 63,000	$ 27,000	$ 0
Stock Issued During Period, Shares, Restricted Stock Award, Forfeited \| shares																										1,950	966	0
Awards ( in usd per share) \| $ / shares																											$ 34.79	$ 25.00
Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Cancellations ( in usd per share) \| $ / shares																										$ 9.59
Cancellations (in shares) \| shares																										(30,743)	(55,896)	(33,538)
Unrecognized share based compensation cost													$ 5,600,000													$ 5,600,000
Unrecognized share based compensation, expected term (in years)																										24 months
Awards (in shares) \| shares																										27,013	55,302	30,743
Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Granted In Period, Fair Value																										$ 1,262,000	$ 2,116,000	$ 733,000
Share-based Payment Arrangement, Plan Modification, Incremental Cost							$ 2,600,000
Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Forfeited In Period, Fair Value																										$ 295,000	$ 799,000	631,000
Expected volatility	44.44%	43.99%		45.50%	43.44%	42.85%	41.79%	41.17%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate	2.55%	1.75%		0.85%	0.49%	0.53%	0.46%	0.52%
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value \| $ / shares													$ 20.95				$ 21.76									$ 20.95	$ 21.76
Grants, weighted average exercise price (in usd per share) \| $ / shares	$ 52.49	$ 49.48		$ 51.15	$ 45.27	$ 39.48	$ 38.78	$ 35.83
Awards ( in usd per share) \| $ / shares																										$ 46.71
Performance Shares \| Forecast
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards (in shares) \| shares																									995,873
Officers And Key Employees [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Directors compensation expense																										$ 2,524,000,000	$ 1,573,000,000	894,000,000
Board of Directors
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Directors compensation expense																										$ 718,000	$ 858,000	$ 889,000
Director
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options awarded (in shares) \| shares																										11,155	14,744	30,883
Value of stock options granted																										$ 415,000	$ 622,000	$ 654,000
Cancellations ( in usd per share) \| $ / shares																										$ 37.14	$ 42.14	$ 21.16
Director Compensation, Quarterly Installment Of Annual Cash Retainer			35,000
Share Based Compensation Arrangement By Share Based Payment Award, Admission Grant			25,000
Share Based Compensation Arrangement By Share Based Payment Award, Quarterly Retainer			18,750
Advsior
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options awarded (in shares) \| shares																										555	466	967
Value of stock options granted																										$ 20,000	$ 20,000	$ 20,000
Employees \| Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards (in shares) \| shares											368,921																	237,500
Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Granted In Period, Fair Value																												$ 2,800,000
Share-based Payment Arrangement, Plan Modification, Incremental Cost																												$ 1,700,000
Lead Director
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Director Compensation, Quarterly Installment Of Annual Cash Retainer			2,500
Share Based Compensation Arrangement By Share Based Payment Award, Additional Installment of Annual Cash Retainer			10,000
Chairman of Audit Committee
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Director Compensation, Quarterly Installment Of Annual Cash Retainer			2,500
Share Based Compensation Arrangement By Share Based Payment Award, Additional Installment of Annual Cash Retainer			10,000
Chairman of Corporate Governance
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Director Compensation, Quarterly Installment Of Annual Cash Retainer			1,250
Share Based Compensation Arrangement By Share Based Payment Award, Additional Installment of Annual Cash Retainer			5,000
Chairman of Compensation Commitee
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Director Compensation, Quarterly Installment Of Annual Cash Retainer			1,250
Share Based Compensation Arrangement By Share Based Payment Award, Additional Installment of Annual Cash Retainer			$ 5,000
Share-based Payment Arrangement, Tranche Two
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate																											1.29%
Share-based Payment Arrangement, Tranche Two \| Employee Stock Option \| Monte-Carlo Pricing Model
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Dividend yield																											1.15%
Expected volatility																											34.08%
Seven Year Vesting Period \| Employee Stock Option \| Black-Scholes
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options awarded (in shares) \| shares																										310,000	0	0
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Options, Grants in Period, Aggregate Grant Date Market Value																										$ 5,388,000	$ 0	$ 0
Three Year Vesting Period \| Employee Stock Option \| Black-Scholes
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options awarded (in shares) \| shares																										12,600	0	20,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Options, Grants in Period, Aggregate Grant Date Market Value																										$ 143,000	$ 0	$ 92,000
Grants, weighted average exercise price (in usd per share) \| $ / shares																										$ 31.58		$ 18.02