|
Property And Equipment (Narrative) (Details) (USD $)
|
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2011
|
Dec. 31, 2010
|
Dec. 31, 2009
|
|
| Property, Plant and Equipment [Line Items] | |||
| Property, plant and equipment, lease rent capitalized | $ 300,000 | $ 400,000 | |
| Accumulated depreciation related to property and equipment financed through capital leases | 7,200,000 | 1,800,000 | |
| Capital leased assets expired | 3,100,000 | ||
| Depreciation expense | 13,352,000 | 8,422,000 | 6,544,000 |
|
Hardware [Member]
|
|||
| Property, Plant and Equipment [Line Items] | |||
| Property, equipment and automobiles financed through capital lease obligations | 13,300,000 | 8,300,000 | |
|
Computer Software [Member]
|
|||
| Property, Plant and Equipment [Line Items] | |||
| Property, equipment and automobiles financed through capital lease obligations | 4,200,000 | 3,900,000 | |
|
Automobiles [Member]
|
|||
| Property, Plant and Equipment [Line Items] | |||
| Property, equipment and automobiles financed through capital lease obligations | $ 1,400,000 | $ 1,200,000 | |