Benefit Plans (Tables)

12 Months Ended

Dec. 31, 2016

Employee Benefits and Share-based Compensation [Abstract]

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions

The more significant assumptions underlying the determination of fair value for options granted were as follows:

	2010 Options			2009 Options			2008 Options
Weighted-average fair value of options granted	$	1.94		$	2.19		$	1.24
Weighted-average risk-free interest rate	2.54		%	3.29		%	1.33		%
Weighted-average expected option lives (in years)	6.50			6.70			3.60
Weighted-average expected volatility	49.00		%	59.08		%	59.94		%
Weighted-average expected dividend yield	7.40		%	6.26		%	14.40		%

Schedule of Share-based Compensation, Stock Options, Activity

Share option activity during the years indicated is as follows:

	Number of Shares		Weighted-Average Exercise Price Per Share
Balance at December 31, 2013	1,955,701		$	6.95
Exercised	(594,791	)	6.71
Forfeited	(10,500	)	7.46
Balance at December 31, 2014 and 2015	1,350,410		7.05
Exercised	(944,169	)	7.17
Balance at December 31, 2016	406,241		$	6.78

Schedule of Nonvested Share Activity

Non-vested share activity for the years ended December 31, 2016 and 2015, is as follows:

	Number of Shares		Weighted-Average Value Per Share
Balance at December 31, 2014	1,970,385		$	10.82
Granted	812,679		7.70
Vested	(413,714	)	11.95
Balance at December 31, 2015	2,369,350		9.55
Granted	1,034,019		5.23
Vested	(252,059	)	10.13
Balance at December 31, 2016	3,151,310		$	8.09

Schedule of Share-based Compensation, Activity

During 2016 and 2015, the Company granted common shares to certain employees and trustees as follows:

	2016	2015
Performance Shares(1)
Shares issued:
Index	404,466	321,018
Peer	404,463	321,011
Grant date fair value per share:(2)
Index	$4.53	$6.86
Peer	$4.58	$6.66
Non-Vested Common Shares:(3)
Shares issued	225,090	170,650
Grant date fair value	$1,724	$1,916
Non-management Board of Trustee grant:(4)
Shares issued	17,500	20,400
Grant date fair value	$131	$209

(1) The shares vest based on the Company's total shareholder return growth after a three-year measurement period relative to an index and a group of Company peers. Dividends will not be paid on these grants until earned. Once the performance criteria are met and the actual number of shares earned is determined, such shares vest immediately.

(2) The fair value of grants was determined at the grant date using a Monte Carlo simulation model.

(3) The shares vest ratably over a three-year service period.

(4) Annual grant and shares vested upon grant.