XML 57 R42.htm IDEA: XBRL DOCUMENT
v3.6.0.2

Earnings per Share Earnings per Share (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2016
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items] |
Schedule of Weighted Average Number of Shares [Table Text Block] | The following table summarizes the dilutive effect of restricted shares and options to purchase common stock:
|  | Year ended December 31,
|  | 2016 |  | 2015 |  | 2014
Weighted average common shares—basic |  | 45,407,316 |  |  | 45,123,626 |  |  | 44,881,925 |
Dilutive effect of restricted share awards |  | — |  |  | — |  |  | 245,828 |
Dilutive effect of stock options |  | — |  |  | — |  |  | 141,656 |
Weighted average common shares—diluted |  | 45,407,316 |  |  | 45,123,626 |  |  | 45,269,409 |

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_EarningsPerShareDilutedLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the weighted average number of shares used in calculating basic net earnings per share (or unit) and diluted earnings per share (or unit). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
Name: | us-gaap_ScheduleOfWeightedAverageNumberOfSharesTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration