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Stock-Based Compensation and Other Employee Benefit Plans (Schedule of Activity, Stock Options) (Details) - USD ($) $ / shares in Units, $ in Millions |  |  | 9 Months Ended
--- | --- | --- | ---
Sep. 30, 2015 | Dec. 31, 2014 | Sep. 30, 2015
Weighted Average Remaining Contractual Life and Aggregate Intrinsic Value |  |  |  |
Options outstanding, vested, weighted average remaining contractual life (in years) |  | 9 months 15 days | 1 year 3 months 15 days |
Options exercisable, weighted average remaining contractual life (in years) |  | 9 months 15 days | 1 year 3 months 15 days |
Options outstanding, vested, aggregate intrinsic value (in dollars) | [1] | $ 0.6 | $ 3.0 | $ 0.6
Options exercisable, aggregate intrinsic value (in dollars) | [1] | $ 0.6 | $ 3.0 | $ 0.6
Common Stock [Member] |  |  |  |
Stock Options |  |  |  |
Options outstanding, vested, beginning balance (in shares) |  |  |  | 284,671
Options exercisable, beginning balance (in shares) |  |  |  | 284,671
Exercised (in shares) |  |  |  | (71,971)
Options outstanding, vested, ending balance (in shares) |  | 212,700 | 284,671 | 212,700
Options exercisable, ending balance (in shares) |  | 212,700 | 284,671 | 212,700
Per Share Weighted Average Exercise Price |  |  |  |
Options outstanding, vested, per share weighted average exercise price, beginning balance (in dollars per share) |  |  |  | $ 12.06
Options exercisable, per share weighted average exercise price, beginning balance (in dollars per share) |  |  |  | 12.06
Options outstanding, vested, per share weighted average exercise price, ending balance (in dollars per share) |  | $ 13.10 | $ 12.06 | 13.10
Options exercisable, per share weighted average exercise price, ending balance (in dollars per share) |  | $ 13.10 | $ 12.06 | 13.10
Common Stock [Member] | Stock Options [Member] |  |  |  |
Per Share Weighted Average Exercise Price |  |  |  |
Exercised (in dollars per share) |  |  |  | $ 9.00
[1] | Amount represents the difference between the exercise price and the closing share price of the Company’s stock on the last trading day of the corresponding period, multiplied by the number of in-the-money options.

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- Definition The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan. + 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 can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan. + 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 Amount by which the current fair value of the underlying stock exceeds the exercise price of options 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 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Number of options outstanding, including both vested and non-vested options. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 2: 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 price at which grantees can acquire the shares reserved for issuance under the stock option plan. + 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) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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