Share-Based and Long-Term Compensation Plans - Summary of Non-vested Shares Activity (Details)	12 Months Ended
	Dec. 31, 2015 $ / shares shares
Restricted Shares
Number of Shares
Balance at beginning of period (in shares) | shares	13,769
Granted (in shares) | shares	0
Vested (in shares) | shares	(8,580)
Forfeited (in shares) | shares	0
Balance at end of period (in shares) | shares	5,189
Weighted Average Grant-Date Fair Value
Balance at beginning of period (in dollars per share) | $ / shares	$ 14.61
Granted (in dollars per share) | $ / shares	0.00
Vested (in dollars per share) | $ / shares	15.20
Forfeited (in dollars per share) | $ / shares	0.00
Balance at end of period (in dollars per share) | $ / shares	$ 13.65
Deferred Incentive Share Units
Number of Shares
Balance at beginning of period (in shares) | shares	6,855
Granted (in shares) | shares	0
Vested (in shares) | shares	(6,130)
Forfeited (in shares) | shares	(725)
Balance at end of period (in shares) | shares	0
Weighted Average Grant-Date Fair Value
Balance at beginning of period (in dollars per share) | $ / shares	$ 16.63
Granted (in dollars per share) | $ / shares	0.00
Vested (in dollars per share) | $ / shares	17.08
Forfeited (in dollars per share) | $ / shares	12.89
Balance at end of period (in dollars per share) | $ / shares	$ 0.00
Stock Options
Number of Shares
Outstanding at beginning of period (in shares) | shares	1,293,750
Granted (in shares) | shares	0
Vested (in shares) | shares	(431,250)
Forfeited (in shares) | shares	0
Outstanding at end of period (in shares) | shares	862,500
Weighted Average Grant-Date Fair Value
Balance at beginning of period (in dollars per share) | $ / shares	$ 4.17
Granted (in dollars per share) | $ / shares	0.00
Vested (in dollars per share) | $ / shares	4.17
Forfeited (in dollars per share) | $ / shares	0.00
Balance at end of period (in dollars per share) | $ / shares	$ 4.17
RSUs
Number of Shares
Balance at beginning of period (in shares) | shares	504,534
Granted (in shares) | shares	267,596
Vested (in shares) | shares	(145,854)
Forfeited (in shares) | shares	(24,001)
Balance at end of period (in shares) | shares	602,275
Weighted Average Grant-Date Fair Value
Balance at beginning of period (in dollars per share) | $ / shares	$ 16.03
Granted (in dollars per share) | $ / shares	13.50
Vested (in dollars per share) | $ / shares	18.45
Forfeited (in dollars per share) | $ / shares	10.96
Balance at end of period (in dollars per share) | $ / shares	$ 14.52
LTIP Units
Number of Shares
Balance at beginning of period (in shares) | shares	300,636
Granted (in shares) | shares	147,302
Vested (in shares) | shares	0
Forfeited (in shares) | shares	0
Balance at end of period (in shares) | shares	447,938
Weighted Average Grant-Date Fair Value
Balance at beginning of period (in dollars per share) | $ / shares	$ 9.26
Granted (in dollars per share) | $ / shares	7.18
Vested (in dollars per share) | $ / shares	0.00
Forfeited (in dollars per share) | $ / shares	0.00
Balance at end of period (in dollars per share) | $ / shares	$ 8.58