Summary of Business and Significant Accounting Policies - Schedule of Other Identifiable Assets - Estimated Useful Lives (Detail)
|
12 Months Ended |
Dec. 31, 2021 |
|---|
| Bottom of range [member] | Trade names [member] |
|
| Disclosure of detailed information about intangible assets [line items] |
|
| Intangible assets useful lives |
3 years
|
| Bottom of range [member] | Customer relationships [member] |
|
| Disclosure of detailed information about intangible assets [line items] |
|
| Intangible assets useful lives |
6 years
|
| Bottom of range [member] | Databases and content [member] |
|
| Disclosure of detailed information about intangible assets [line items] |
|
| Intangible assets useful lives |
5 years
|
| Bottom of range [member] | Other identifiable intangible assets [member] |
|
| Disclosure of detailed information about intangible assets [line items] |
|
| Intangible assets useful lives |
10 years
|
| Top of range [member] | Trade names [member] |
|
| Disclosure of detailed information about intangible assets [line items] |
|
| Intangible assets useful lives |
20 years
|
| Top of range [member] | Customer relationships [member] |
|
| Disclosure of detailed information about intangible assets [line items] |
|
| Intangible assets useful lives |
30 years
|
| Top of range [member] | Databases and content [member] |
|
| Disclosure of detailed information about intangible assets [line items] |
|
| Intangible assets useful lives |
30 years
|
| Top of range [member] | Other identifiable intangible assets [member] |
|
| Disclosure of detailed information about intangible assets [line items] |
|
| Intangible assets useful lives |
30 years
|