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Share-Based Compensation: (Details) (USD $) In Thousands, except Share data, unless otherwise specified | 9 Months Ended
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Sep. 30, 2012
Weighted average exercise price |
Outstanding, aggregate intrinsic value | $ 1,821
Exercisable, aggregate intrinsic value | $ 1,362
Stock options |
Share-based compensation disclosures |
Options cancelled in connection with separation (in shares) | 2,900,000
Activity in the entity's stock option plans |
Outstanding, beginning of period (in shares) | 2,096,000
Granted (in shares) | 111,000
Exercised (in shares) | (669,000)
Forfeited and expired (in shares) | (83,000)
Outstanding, end of period (in shares) | 1,455,000
Exercisable (in shares) | 1,001,000
Weighted average exercise price |
Outstanding, weighted average exercise price, beginning of period (in dollars per share) | $ 20.11
Granted, weighted average exercise price (in dollars per share) | $ 23.74
Exercised, weighted average exercise price (in dollars per share) | $ 17.54
Forfeited and expired, weighted average exercise price (in dollars per share) | $ 25.14
Outstanding, weighted average exercise price, end of period (in dollars per share) | $ 21.29
Exercisable, weighted average exercise price (in dollars per share) | $ 21.61
Outstanding, weighted average contractual life | 5 years 7 months 6 days
Exercisable, weighted average contractual life | 4 years 6 months
2007 Plan | Stock options |
Activity in the entity's stock option plans |
Outstanding, beginning of period (in shares) | 1,329,000
Granted (in shares) | 111,000
Exercised (in shares) | (430,000)
Forfeited and expired (in shares) | (5,000)
Outstanding, end of period (in shares) | 1,005,000
Exercisable (in shares) | 551,000
1998 Plan | Stock options |
Activity in the entity's stock option plans |
Outstanding, beginning of period (in shares) | 572,000
Exercised (in shares) | (190,000)
Forfeited and expired (in shares) | (78,000)
Outstanding, end of period (in shares) | 304,000
Exercisable (in shares) | 304,000
Predecessor Plan 1998 Directors' Plan |
Activity in the entity's stock option plans |
Outstanding, beginning of period (in shares) | 195,000
Exercised (in shares) | (49,000)
Outstanding, end of period (in shares) | 146,000
Exercisable (in shares) | 146,000

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- Definition Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable. + 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 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 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph b(1)(c), d(2) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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- Definition Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, 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 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition For presentations that combine terminations, the number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan or that expired. + 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)(iv)(3)-(4) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Amount of difference between fair value of the underlying shares reserved for issuance and 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 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph d(1) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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- Definition The number of shares reserved for issuance under stock option agreements awarded under the plan that validly exist and are outstanding as of the balance sheet date, including vested options. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph b(1)(b) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: 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 3: 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 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph b(1)(a) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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