In Thousands | 3 Months Ended
Sep. 30, 2009
Retained Earnings [Member]
| 3 Months Ended
Sep. 30, 2008
Retained Earnings [Member]
| 9 Months Ended
Sep. 30, 2009
Retained Earnings [Member]
| 9 Months Ended
Sep. 30, 2008
Retained Earnings [Member]
| Jun. 30, 2009
Retained Earnings [Member]
| Dec. 31, 2008
Retained Earnings [Member]
| Jun. 30, 2008
Retained Earnings [Member]
| Dec. 31, 2007
Retained Earnings [Member]
| Sep. 30, 2009
Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member]
| Jun. 30, 2009
Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member]
| Dec. 31, 2008
Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member]
| Sep. 30, 2008
Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member]
| Jun. 30, 2008
Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member]
| Dec. 31, 2007
Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member]
| Sep. 30, 2009
Accumulated Defined Benefit Plans Adjustment [Member]
| Jun. 30, 2009
Accumulated Defined Benefit Plans Adjustment [Member]
| Dec. 31, 2008
Accumulated Defined Benefit Plans Adjustment [Member]
| Sep. 30, 2008
Accumulated Defined Benefit Plans Adjustment [Member]
| Jun. 30, 2008
Accumulated Defined Benefit Plans Adjustment [Member]
| Dec. 31, 2007
Accumulated Defined Benefit Plans Adjustment [Member]
| Sep. 30, 2009
Accumulated Net Unrealized Investment Gain (Loss) [Member]
| Jun. 30, 2009
Accumulated Net Unrealized Investment Gain (Loss) [Member]
| Dec. 31, 2008
Accumulated Net Unrealized Investment Gain (Loss) [Member]
| Sep. 30, 2008
Accumulated Net Unrealized Investment Gain (Loss) [Member]
| Jun. 30, 2008
Accumulated Net Unrealized Investment Gain (Loss) [Member]
| Dec. 31, 2007
Accumulated Net Unrealized Investment Gain (Loss) [Member]
| Sep. 30, 2009
Accumulated Translation Adjustment [Member]
| Jun. 30, 2009
Accumulated Translation Adjustment [Member]
| Dec. 31, 2008
Accumulated Translation Adjustment [Member]
| Sep. 30, 2008
Accumulated Translation Adjustment [Member]
| Jun. 30, 2008
Accumulated Translation Adjustment [Member]
| Dec. 31, 2007
Accumulated Translation Adjustment [Member]
| 3 Months Ended
Sep. 30, 2009
Accumulated Other Comprehensive Income [Member]
| 3 Months Ended
Sep. 30, 2008
Accumulated Other Comprehensive Income [Member]
| 9 Months Ended
Sep. 30, 2009
Accumulated Other Comprehensive Income [Member]
| 9 Months Ended
Sep. 30, 2008
Accumulated Other Comprehensive Income [Member]
| Jun. 30, 2009
Accumulated Other Comprehensive Income [Member]
| Dec. 31, 2008
Accumulated Other Comprehensive Income [Member]
| Jun. 30, 2008
Accumulated Other Comprehensive Income [Member]
| Dec. 31, 2007
Accumulated Other Comprehensive Income [Member]
| Additional Paid-in Capital [Member]
7/1/2009 - 9/30/2009
| Additional Paid-in Capital [Member]
7/1/2008 - 9/30/2008
| Additional Paid-in Capital [Member]
1/1/2009 - 9/30/2009
| Additional Paid-in Capital [Member]
1/1/2008 - 9/30/2008
| Additional Paid-in Capital [Member]
6/30/2009
| Additional Paid-in Capital [Member]
12/31/2008
| Additional Paid-in Capital [Member]
6/30/2008
| Additional Paid-in Capital [Member]
12/31/2007
| 3 Months Ended
Sep. 30, 2009
Comprehensive Income [Member]
| 3 Months Ended
Sep. 30, 2008
Comprehensive Income [Member]
| 9 Months Ended
Sep. 30, 2009
Comprehensive Income [Member]
| 9 Months Ended
Sep. 30, 2008
Comprehensive Income [Member]
|