|
Goodwill and Intangible Assets (Schedule of Acquired Intangible Assets) (Detail) (USD $)
In Thousands, unless otherwise specified |
Sep. 30, 2012
|
Dec. 31, 2011
|
|---|---|---|
| Goodwill [Line Items] | ||
| Gross Carrying Amount | $ 63,029 | $ 68,684 |
| Accumulated Amortization | (20,302) | (15,570) |
| Net Carrying Amount | 42,727 | 53,114 |
|
Acquired Methodologies/Technology [Member]
|
||
| Goodwill [Line Items] | ||
| Gross Carrying Amount | 8,360 | 11,244 |
| Accumulated Amortization | (3,804) | (3,307) |
| Net Carrying Amount | 4,556 | 7,937 |
|
Customer Relationships [Member]
|
||
| Goodwill [Line Items] | ||
| Gross Carrying Amount | 35,347 | 38,157 |
| Accumulated Amortization | (9,868) | (7,698) |
| Net Carrying Amount | 25,479 | 30,459 |
|
Panel [Member]
|
||
| Goodwill [Line Items] | ||
| Gross Carrying Amount | 1,639 | 1,615 |
| Accumulated Amortization | (1,015) | (826) |
| Net Carrying Amount | 624 | 789 |
|
Intellectual Property [Member]
|
||
| Goodwill [Line Items] | ||
| Gross Carrying Amount | 13,571 | 13,561 |
| Accumulated Amortization | (2,074) | (918) |
| Net Carrying Amount | 11,497 | 12,643 |
|
Trade Names [Member]
|
||
| Goodwill [Line Items] | ||
| Gross Carrying Amount | 4,112 | 4,107 |
| Accumulated Amortization | (3,541) | (2,821) |
| Net Carrying Amount | $ 571 | $ 1,286 |