Statement Of Changes In Net Assets Available For Benefits [Abstract]
| Concept |
2021-01-01 to 2021-12-31 |
2020-01-01 to 2020-12-31 |
|---|---|---|
| Statement of changes in net assets available for benefits [abstract] | ||
| Reconciliation of changes in net assets available for benefits [abstract] | ||
| Changes in net assets available for benefits [abstract] | ||
| Other income |
2,620,000
USD
|
1,829,000
USD
|
| Administrative expenses |
36,974,000
USD
|
24,085,000
USD
|
| Other expense, by function |
166,788,000
USD
|
114,208,000
USD
|
| Tax expense (income) |
7,082,000
USD
|
6,348,000
USD
|