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Equity-Based Compensation Plans (Schedule of Information of Stock Options Outstanding) (Details) | 12 Months Ended
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Dec. 31, 2016 $ / shares shares
Options outstanding | shares | 59,948
Weighted-average remaining contractual, outstanding | 1 year 4 months 24 days
Weighted-average exercise price | $ / shares | $ 17.18
Options exercisable | shares | 59,948
Weighted-average exercise price | $ / shares | $ 17.18
$13.27 to $15.48 [Member] |
Options outstanding | shares | 9,000
Weighted-average remaining contractual, outstanding | 2 years 4 months 24 days
Weighted-average exercise price | $ / shares | $ 14.35
Options exercisable | shares | 9,000
Weighted-average exercise price | $ / shares | $ 14.35
$15.48 to $17.70 [Member] |
Options outstanding | shares | 34,698
Weighted-average remaining contractual, outstanding | 1 year 6 months
Weighted-average exercise price | $ / shares | $ 16.60
Options exercisable | shares | 34,698
Weighted-average exercise price | $ / shares | $ 16.60
$17.70 to $19.91 [Member] |
Options outstanding | shares | 11,250
Weighted-average remaining contractual, outstanding | 4 months 24 days
Weighted-average exercise price | $ / shares | $ 19.61
Options exercisable | shares | 11,250
Weighted-average exercise price | $ / shares | $ 19.61
$19.91 to $22.21 [Member] |
Options outstanding | shares | 5,000
Weighted-average remaining contractual, outstanding | 1 year 3 months 18 days
Weighted-average exercise price | $ / shares | $ 20.80
Options exercisable | shares | 5,000
Weighted-average exercise price | $ / shares | $ 20.80

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- Definition The number of shares reserved for issuance pertaining to the outstanding exercisable stock options as of the balance sheet date in the customized range of exercise prices for which the market and performance vesting condition has been satisfied. + 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)(iii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The number of shares reserved for issuance pertaining to the outstanding stock options as of the balance sheet date for all option plans in the customized range of exercise prices. + 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)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Weighted average exercise price as of the balance sheet date for those equity-based payment arrangements exercisable and outstanding. + 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)(iii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The weighted average price as of the balance sheet date at which grantees could acquire the underlying shares with respect to all outstanding stock options which are in the customized range of exercise prices. + 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)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Weighted average remaining contractual term of outstanding stock options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + 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 (e)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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