Equity-Based Compensation (Summary of Stock Option Transactions) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Options (in shares):
Beginning balance (in shares)	458,349	569,319	622,124
Granted (in shares)	0	37,500	0
Exercised (in shares)	(175,125)	(119,096)	(52,805)
Forfeited (in shares)	(6,000)	(750)
Expired (in shares)		(28,624)
Ending balance (in shares)	277,224	458,349	569,319
Weighted Average Exercise Price (in dollars per share)
Begininng balance (in dollars per share)	$ 16.57	$ 15.88	$ 15.48
Granted (in dollars per share)		25.44
Exercised (in dollars per share)	19.08	15.13	11.18
Forfeited (in dollars per share)	18.22	9.74
Expired (in dollars per share)		20.56
Ending balance (in dollars per share)	$ 14.95	$ 16.57	$ 15.88
Weighted Average Remaining Contractual Life (in years)	4 years 7 days
Aggregate Intrinsic Value	$ 7,401,000