XML 41 R24.htm IDEA: XBRL DOCUMENT
v3.25.0.1

Inventory (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2024
Inventory, Real Estate [Abstract] |
Schedule of Inventory, Current [Table Text Block] | A summary of inventory is as follows (in thousands):
| December 31, 2024 |  | December 31, 2023
Land and lots - developed and under development | $ | 1,234,532 |  |  | $ | 921,241 |
Homes completed or under construction | 678,198 |  |  | 559,488 |
Land held for future development(1) | 14,481 |  |  | 48,991 |
Land held for sale | 10,521 |  |  | 3,503 |
Total inventory | $ | 1,937,732 |  |  | $ | 1,533,223 |
Real Estate Inventory, Capitalized Interest Costs [Roll Forward] | A summary of interest costs incurred, capitalized and expensed is as follows (in thousands):
| Years Ended December 31,
| 2024 |  | 2023 |  | 2022
Interest capitalized at beginning of period | $ | 24,126 |  |  | $ | 22,752 |  |  | $ | 19,950 |
Interest incurred | 13,910 |  |  | 14,628 |  |  | 16,454 |
Interest charged to cost of revenues | (11,416) |  |  | (13,254) |  |  | (13,652) |
Interest capitalized at end of period | $ | 26,620 |  |  | $ | 24,126 |  |  | $ | 22,752 |
Capitalized interest as a percentage of inventory | 1.4 | % |  | 1.6 | % |  | 1.6 | %

X
- Definition Summary of Real Estate Inventory Capitalized Interest Costs [Table Text Block] + References No definition available. + Details
Name: | grbk_SummaryofRealEstateInventoryCapitalizedInterestCostsTableTextBlock
Namespace Prefix: | grbk_
Data Type: | dtr-types1:textBlockItemType
Balance Type: | na
Period Type: | duration

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

X
- Definition Tabular disclosure of the carrying amount as of the balance sheet date of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(6)(a)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(6)(b)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(6)(c)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483489/210-10-50-1 + Details
Name: | us-gaap_ScheduleOfInventoryCurrentTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration