Equity-Based Compensation (Summary of Information about Restricted Stock Units and Weighted Average Grant Date Fair Value) (Details) - $ / shares	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Restricted shares
Restricted Stock Units / Restricted Stock (in shares)
Balance at beginning of period	10,259
Granted	21,318	21,721	13,188
Vested	(7,156)
Forfeited	(2,936)
Balance at end of period	21,485	10,259
Weighted Average Grant Date Fair Value (in dollars per share)
Balance at beginning of period	$ 15.89
Granted	17.48	$ 16.76	$ 16.83
Vested	15.49
Forfeited	17.71
Balance at end of period	$ 17.59	$ 15.89
Performance Shares
Restricted Stock Units / Restricted Stock (in shares)
Balance at beginning of period	0
Granted	396,714	0	0
Vested	0
Forfeited	0
Balance at end of period	396,714	0
Weighted Average Grant Date Fair Value (in dollars per share)
Balance at beginning of period	$ 0.00
Granted	19.78	$ 0.00	$ 0.00
Vested	0.00
Forfeited	0.00
Balance at end of period	$ 19.78	$ 0.00
Restricted stock units
Restricted Stock Units / Restricted Stock (in shares)
Balance at beginning of period	647,492
Granted	212,419	218,857	150,570
Vested	(297,080)
Forfeited	(14,016)
Balance at end of period	548,815	647,492
Weighted Average Grant Date Fair Value (in dollars per share)
Balance at beginning of period	$ 15.26
Granted	17.78	$ 16.96	$ 14.60
Vested	17.13
Forfeited	15.43
Balance at end of period	$ 15.22	$ 15.26