Stock-based Compensation and Employee Benefit Plans (Stock Option Activity) (Details) (USD $)	12 Months Ended
Dec. 31, 2013
Number of Options
Beginning balance, outstanding (shares)	245,914
Granted (shares)	3,105
Exercised (shares)	0
Forfeited or expired (shares)	0
Ending balance, outstanding (shares)	249,019
Excercisable (shares)	98,987
Weighted Average Exercise Price
Beginning balance, outstanding (per share)	$ 137
Granted (per share)	$ 172
Exercised (per share)	$ 0
Forfeited or expired (per share)	$ 0
Ending balance, outstanding (per share)	$ 146
Exercisable ending balance (per share)	$ 0
Weighted Average Remaining Contractual Term
Outstanding	8 years
Exercisable	0 years

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The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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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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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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For presentations that combine terminations, 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 or that expired.

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Weighted average price of options that were either forfeited or expired.

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The number of shares reserved for issuance under stock option agreements awarded under the plan that validly exist and are outstanding as of the balance sheet date, including vested options.

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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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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 can acquire the shares reserved for issuance on stock options awarded.

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

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