Goodwill and Other Intangible Assets - Goodwill - Additional Information (Detail) $ in Thousands |
12 Months Ended |
|---|---|
|
Dec. 31, 2015
USD ($)
Segment
| |
| Goodwill And Other Intangible Assets [Line Items] | |
| Number of reporting units | Segment | 4 |
| Americas [Member] | |
| Goodwill And Other Intangible Assets [Line Items] | |
| Percentage of fair value excess by carrying value | 151.00% |
| Culture Shaping [Member] | |
| Goodwill And Other Intangible Assets [Line Items] | |
| Percentage of fair value excess by carrying value | 34.00% |
| Asia Pacific [Member] | |
| Goodwill And Other Intangible Assets [Line Items] | |
| Percentage of fair value excess by carrying value | 19.00% |
| Co Company [Member] | |
| Goodwill And Other Intangible Assets [Line Items] | |
| Goodwill acquired | $ 10,745 |
| Co Company [Member] | Europe [Member] | |
| Goodwill And Other Intangible Assets [Line Items] | |
| Goodwill acquired | $ 10,700 |