XML 65 R45.htm IDEA: XBRL DOCUMENT
v3.6.0.2

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.

X
- References No definition available. + Details
Name: | us-gaap_EmployeeBenefitsAndShareBasedCompensationAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the changes in outstanding nonvested shares. + References 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)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfNonvestedShareActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of share-based compensation plans that may be presented in a single table for outstanding, vested and expected to vest, and exercisable awards. The information that may be disclosed in this table may include, but is not limited to, number of shares, weighted average exercise price, weighted average remaining contractual life, and aggregate intrinsic value. + References No definition available. + Details
Name: | us-gaap_ScheduleOfShareBasedCompensationActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year. + References 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) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration