Stock-Based Compensation (Narrative) (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2016 |
Jun. 30, 2015 |
Jun. 30, 2016 |
Jun. 30, 2015 |
|
| Share-based Compensation [Abstract] | ||||
| Stock-based compensation expense | $ 3,300 | $ 3,200 | $ 6,600 | $ 6,700 |
| Capitalized stock-based compensation | 1,300 | $ 1,300 | 2,625 | $ 2,694 |
| Unrecognized compensation expense | $ 16,000 | $ 16,000 | ||
| Weighted average period of expense recognition (in years) | 1 year 8 months 7 days | |||
| X | ||||||||||
- Definition Non-cash stock based compensation capitalized. No definition available.
|
| X | ||||||||||
- Definition Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Unrecognized cost of unvested share-based compensation awards. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- References No definition available.
|