XML 38 R28.htm IDEA: XBRL DOCUMENT
v3.26.1

Stockholders’ (Deficit) Equity (Tables) | 6 Months Ended
--- | ---
Jun. 30, 2026
Equity [Abstract] |
Schedule of Repurchase Program Activity | The table below is a plan-to-date summary of the Company’s repurchase program activity as of June 30, 2026:
| Aggregate Price |  | Repurchased Shares |  | Average Price Per Share
Authorized amount | $ | 900,000 |  |  |  |
Open market repurchases | $ | 450,506 |  | 25,129,829 |  | $ | 17.93
Equity Instruments: |  |  |  |  |
Prepaid written put options | 19,306 |  | 1,594,650 |  | $ | 12.11
Accelerated share repurchases | 88,000 |  | 7,657,308 |  | $ | 11.49
Forward repurchase transactions | 39,940 |  | 3,265,846 |  | $ | 12.23
Total repurchases | $ | 597,752 |  | 37,647,633 |  | $ | 15.88
Available for repurchase | $ | 302,248 |  |  |  |

X
- Definition Schedule Of Share Repurchases + References No definition available. + Details
Name: | grnd_ScheduleOfShareRepurchasesTableTextBlock
Namespace Prefix: | grnd_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_EquityAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration