| **Stockholders' Equity (Tables)**                                           | 9 Months Ended                                                                                                                                                                                                                                                                                                                                                                       |
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| **Stockholders' Equity Note [Abstract]**                                    |                                                                                                                                                                                                                                                                                                                                                                                 |
| Schedule of Share-based Compensation, Restricted Stock Units Award Activity | A summary of nonvested restricted stock award activity under the Stock Option Plan for the nine months ended September 30, 2013, follows (share amounts in thousands): Shares WeightedAverageGrant DateFair ValueNonvested at January 1, 20131,127 $9.59Granted664 $8.27Vested(119) $7.87Forfeited(15) $8.50Nonvested at September 30, 20131,657  |
| Schedule Of Share-based Compensation                                        | The following is a summary of our share-based compensation expense for the nine months ended September 30, 2013 and 2012 (amounts in thousands): 2013 2012Share-based compensation expense$4,764 3,989Adjustment to fair value of liability classified awards(35) 1Total share-based compensation expense$4,729 3,990                                       |

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| - Definition
Tabular disclosure of the allocation of equity-based compensation costs to a given line item on the balance sheet and income statement for the period. This may include the reporting line for the costs and the amount capitalized and expensed.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 14.F) -URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 14 -Section FReference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901
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| - Definition
Tabular disclosure of the number and weighted-average grant date fair value for restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock units that were granted, vested, or forfeited during the year.
+ References
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