Description of Business (Details) (USD $)
In Thousands, unless otherwise specified |
12 Months Ended | 0 Months Ended | ||
---|---|---|---|---|
Dec. 31, 2014
|
Dec. 31, 2013
|
Dec. 31, 2012
|
Jan. 12, 2012
|
|
Description of Business [Line Items] | ||||
Payments to acquire businesses, gross | $ 0 | $ 0 | $ 150,000 | |
ADAPTIX, Inc. [Member] | ||||
Description of Business [Line Items] | ||||
Payments to acquire businesses, gross | $ 150,000 |