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Borrowings (Senior Secured Revolving Credit Facility) (Details) (USD $)
In Thousands, unless otherwise specified |
3 Months Ended | 1 Months Ended | 0 Months Ended | ||||||
|---|---|---|---|---|---|---|---|---|---|
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Mar. 31, 2013
Regions Bank [Member]
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Mar. 31, 2013
Minimum [Member]
Regions Bank [Member]
|
Mar. 31, 2013
Maximum [Member]
Regions Bank [Member]
|
Mar. 31, 2013
Revolving Credit Facility [Member]
|
Dec. 31, 2012
Revolving Credit Facility [Member]
|
Mar. 31, 2013
Revolving Credit Facility [Member]
Regions Bank [Member]
|
Apr. 30, 2013
Subsequent Event [Member]
|
May 06, 2013
Subsequent Event [Member]
Revolving Credit Facility [Member]
Regions Bank [Member]
|
Apr. 30, 2013
Subsequent Event [Member]
Revolving Credit Facility [Member]
Regions Bank [Member]
|
|
| Line of Credit Facility [Line Items] | |||||||||
| Maximum borrowing capacity | $ 200,000 | ||||||||
| Line of Credit Facility, Current Borrowing Capacity | 65,000 | 75,000 | |||||||
| Interest rate at period end (as a percent) | 3.10% | ||||||||
| Basis Spread on LIBOR (as a percent) | 2.50% | 3.00% | |||||||
| Unused capacity, commitment fee (as a percent) | 0.50% | ||||||||
| Line of Credit Facility, Amount Outstanding | 27,000 | 10,000 | 38,000 | ||||||
| Line of Credit Facility, Increase, Additional Borrowings | $ 10,000 | $ 11,000 | |||||||