|
Summary of Significant Accounting Policies Deferred Charges (Details) (USD $)
|
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2011
|
Dec. 31, 2010
|
Dec. 31, 2009
|
|
| Deferred Charges [Line Items] | |||
| Payments for Commissions | $ 100,000 | $ 600,000 | $ 100,000 |
| Contract Revenue Cost | 100,000 | 600,000 | |
| Payments of Debt Issuance Costs | 8,015,000 | 0 | 0 |
| Sales Commissions and Fees | 400,000 | 3,700,000 | 3,400,000 |
| Amortization of Financing Costs | 977,000 | 0 | 0 |
|
Deferred Sales Commission Current [Member]
|
|||
| Deferred Charges [Line Items] | |||
| Other Deferred Costs, Net | 289,000 | 289,000 | |
|
Deferred Contract Revenue Costs Current [Member]
|
|||
| Deferred Charges [Line Items] | |||
| Other Deferred Costs, Net | 79,000 | 79,000 | |
|
Deferred Finance Costs Current [Member]
|
|||
| Deferred Charges [Line Items] | |||
| Deferred Finance Costs, Net | 1,303,000 | 0 | |
|
Deferred Sales Commission Non-Current [Member]
|
|||
| Deferred Charges [Line Items] | |||
| Other Deferred Costs, Net | 1,406,000 | 1,623,000 | |
|
Deferred Contract Revenue Costs Non-Current [Member]
|
|||
| Deferred Charges [Line Items] | |||
| Other Deferred Costs, Net | 316,000 | 395,000 | |
|
Deferred Finance Costs Non-Current [Member]
|
|||
| Deferred Charges [Line Items] | |||
| Deferred Finance Costs, Net | 4,235,000 | 0 | |
|
Convertible Debt [Member]
|
|||
| Deferred Charges [Line Items] | |||
| Payments of Debt Issuance Costs | 8,000,000 | ||
|
Convertible Debt [Member] | Equity [Member]
|
|||
| Deferred Charges [Line Items] | |||
| Payments of Debt Issuance Costs | $ (1,500,000) | ||