COMMON STOCK Schedule of Changes in SARs (Details) (Stock Appreciation Rights (SARs) [Member], USD $)	12 Months Ended
Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 01, 2010
Stock Appreciation Rights (SARs) [Member]
Number of SARs
Outstanding beginning of year, January 1,	118,832	50,471		57,282
Awarded	87,078	68,361	31,552
Exercised	(15,147)	0	(25,371)
Forfeited	0	0	(12,992)
Outstanding end of year, December 31,	190,763	118,832	50,471	57,282
Exercisable at December 31,	51,922	27,458	10,636
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward]
Outstanding beginning of year, January 1,	$ 30.80	$ 31.61		$ 24.44
Awarded	$ 37.18	$ 30.19	$ 43.95
Exercised	$ 30.06	$ 0.00	$ 24.44
Forfeited	$ 0.00	$ 0.00	$ 43.95
Outstanding end of year, December 31,	$ 33.77	$ 30.80	$ 31.61	$ 24.44
Exercisable at December 31,	$ 29.97	$ 28.84	$ 24.44
Weighted-Average Remaining Contractual Term (in years)
Outstanding at December 31,	8 years 2 months 0 days	8 years 4 months 30 days
Exercisable at December 31,	7 years 1 month 0 days
Share based compesation aggregate intrinsic valu [Roll Forward]
Outstanding beginning of year, January 1,	$ 3,711,000	$ 486,000	$ 341,000	$ 1,020,000
Awarded	0	0	0
Exercised	425,000	0	77,000
Forfeited	0	0	0
Outstanding end of year, December 31,	3,711,000	486,000	341,000	1,020,000
Exercisable at December 31,	1,207,000	187,000	114,000
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized	$ 1,700,000
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Period for Recognition	1 year 9 months 0 days

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Intrinsic value of share based awards exercised during the period

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Intrinsic value of share based awards forfeited during the period

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Intrinsic value of share based awards granted during the period

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Unrecognized cost of unvested share-based compensation awards.

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Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Number of non-option equity instruments exercised by participants.

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Number of shares under non-option equity instrument agreements that were cancelled as a result of occurrence of a terminating event.

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Net number of non-option equity instruments granted to participants.

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Number of equity instruments other than options outstanding, including both vested and non-vested instruments.

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

-Publisher FASB

-Name Accounting Standards Codification

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-SubTopic 10

-Section 50

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Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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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.

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Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of fully vested and expected to vest options that are exercisable.

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The number of exercisable share options (fully vested and expected to vest) that may be converted as of the balance sheet date.

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As of the balance sheet date, the weighted-average exercise price (at which grantees can acquire the shares reserved for issuance) for exercisable stock options that are fully vested or expected to vest.

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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 price at which grantees could have acquired the underlying shares with respect to stock options that were terminated.

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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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