Equity-Based Compensation (Summary of Stock Option Transactions) (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Options (in shares):
Balance at	569,319	622,124	711,624
Granted	37,500	0	0
Exercised	(119,096)	(52,805)	(59,750)
Forfeited	(750)	0	(29,750)
Expired	(28,624)
Balance at	458,349	569,319	622,124
Weighted Average Exercise Price (in dollars per share)
Balance at	$ 15.88	$ 15.48	$ 14.97
Granted	25.44
Exercised	15.13	11.18	11.00
Forfeited	9.74	0.00	12.38
Expired	20.56
Balance at	$ 16.57	$ 15.88	$ 15.48
Weighted Average Remaining Contractual Life (in years)	3 years 5 months 1 day
Aggregate Intrinsic Value	$ 4,065

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

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)(iv)(4)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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

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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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Number of options outstanding, including both vested and non-vested options.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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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 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 of the plan that expired.

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

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