|
Intangible Assets (Details) (USD $)
In Thousands, unless otherwise specified |
3 Months Ended | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Mar. 31, 2013
|
Dec. 31, 2012
|
Mar. 31, 2013
Customer lists [Member]
|
Dec. 31, 2012
Customer lists [Member]
|
Mar. 31, 2013
Proprietary technologies [Member]
|
Dec. 31, 2012
Proprietary technologies [Member]
|
Mar. 31, 2013
Trade names [Member]
|
Dec. 31, 2012
Trade names [Member]
|
Mar. 31, 2013
Minimum [Member]
Customer lists [Member]
|
Mar. 31, 2013
Minimum [Member]
Proprietary technologies [Member]
|
Mar. 31, 2013
Maximum [Member]
Customer lists [Member]
|
Mar. 31, 2013
Maximum [Member]
Proprietary technologies [Member]
|
Mar. 31, 2013
Maximum [Member]
Trade names [Member]
|
|
| Components of intangible assets | |||||||||||||
| Useful Life | 4 years | 5 years | 12 years | 8 years | 5 years | ||||||||
| Gross Carrying Amount | $ 36,773 | $ 36,773 | $ 28,103 | $ 28,103 | $ 6,580 | $ 6,580 | $ 2,090 | $ 2,090 | |||||
| Accumulated Amortization | (11,207) | (9,623) | (9,927) | (8,720) | (922) | (657) | (358) | (246) | |||||
| Net Carrying Amount | $ 25,566 | $ 27,150 | $ 18,176 | $ 19,383 | $ 5,658 | $ 5,923 | $ 1,732 | $ 1,844 | |||||