{"cik":1373670,"company":{"entity_status":null,"filings":[{"accession":"0001628280-26-059193","document":"grbk-20260821.htm","filed":"2026-08-27","form":"8-K","items":"5.02","report_date":"2026-08-21"},{"accession":"0001628280-26-050835","document":"grbk-20260730.htm","filed":"2026-07-30","form":"8-K","items":"5.02,7.01,9.01","report_date":"2026-07-30"},{"accession":"0001628280-26-050640","document":"grbk-20260630.htm","filed":"2026-07-29","form":"10-Q","items":"","report_date":"2026-06-30"},{"accession":"0001628280-26-050626","document":"grbk-20260729.htm","filed":"2026-07-29","form":"8-K","items":"2.02,8.01,9.01","report_date":"2026-07-29"},{"accession":"0001628280-26-046536","document":"grbk-20260701.htm","filed":"2026-07-01","form":"8-K","items":"5.07","report_date":"2026-07-01"},{"accession":"0002138876-26-000004","document":"xslF345X06/wk-form4_1781561443.xml","filed":"2026-06-15","form":"4","items":"","report_date":"2026-06-15"},{"accession":"0001628280-26-042502","document":"xslF345X06/wk-form4_1781208248.xml","filed":"2026-06-11","form":"4","items":"","report_date":"2026-06-09"},{"accession":"0001628280-26-042500","document":"grbk-20260608.htm","filed":"2026-06-11","form":"8-K","items":"5.02","report_date":"2026-06-08"},{"accession":"0001628280-26-037542","document":"grbk-20260522.htm","filed":"2026-05-22","form":"DEF 14A","items":"","report_date":"2025-12-31"},{"accession":"0001628280-26-033612","document":"grbk-20260331.htm","filed":"2026-05-11","form":"10-Q","items":"","report_date":"2026-03-31"},{"accession":"0001628280-26-033478","document":"grbk-20251231.htm","filed":"2026-05-11","form":"10-K/A","items":"","report_date":"2025-12-31"},{"accession":"0001628280-26-028726","document":"grbk-20251231.htm","filed":"2026-04-30","form":"10-K/A","items":"","report_date":"2025-12-31"},{"accession":"0001628280-26-028354","document":"grbk-20260429.htm","filed":"2026-04-29","form":"8-K","items":"2.01,8.01,9.01","report_date":"2026-04-29"},{"accession":"0001628280-26-028348","document":"grbk-20260429.htm","filed":"2026-04-29","form":"8-K","items":"7.01","report_date":"2026-04-29"},{"accession":"0001628280-26-028345","document":"grbk-20260429.htm","filed":"2026-04-29","form":"8-K","items":"4.02","report_date":"2026-04-29"},{"accession":"0001628280-26-021710","document":"xslF345X06/wk-form4_1774641730.xml","filed":"2026-03-27","form":"4","items":"","report_date":"2026-03-26"},{"accession":"0001628280-26-021709","document":"xslF345X06/wk-form4_1774641725.xml","filed":"2026-03-27","form":"4","items":"","report_date":"2026-03-26"},{"accession":"0001628280-26-021708","document":"xslF345X06/wk-form4_1774641720.xml","filed":"2026-03-27","form":"4","items":"","report_date":"2026-03-26"},{"accession":"0001628280-26-021707","document":"xslF345X06/wk-form4_1774641716.xml","filed":"2026-03-27","form":"4","items":"","report_date":"2026-03-26"},{"accession":"0001628280-26-021705","document":"xslF345X06/wk-form4_1774641711.xml","filed":"2026-03-27","form":"4","items":"","report_date":"2026-03-26"},{"accession":"0001628280-26-016223","document":"xslF345X05/wk-form4_1773107320.xml","filed":"2026-03-09","form":"4","items":"","report_date":"2026-03-06"},{"accession":"0001628280-26-011798","document":"grbk-20251231.htm","filed":"2026-02-25","form":"10-K","items":"","report_date":"2025-12-31"},{"accession":"0001628280-26-011706","document":"grbk-20260225.htm","filed":"2026-02-25","form":"8-K","items":"2.02,9.01","report_date":"2026-02-25"},{"accession":"0001628280-26-009698","document":"grbk-20260218.htm","filed":"2026-02-19","form":"8-K","items":"8.01","report_date":"2026-02-18"},{"accession":"0001628280-25-057409","document":"grbk-20251210.htm","filed":"2025-12-16","form":"8-K","items":"1.01,2.03,8.01,9.01","report_date":"2025-12-10"},{"accession":"0001628280-25-047118","document":"grbk-20250930.htm","filed":"2025-10-29","form":"10-Q","items":"","report_date":"2025-09-30"},{"accession":"0001373670-25-000086","document":"grbk-20251029.htm","filed":"2025-10-29","form":"8-K","items":"2.02,8.01,9.01","report_date":"2025-10-29"},{"accession":"0001373670-25-000072","document":"grbk-20250630.htm","filed":"2025-07-30","form":"10-Q","items":"","report_date":"2025-06-30"},{"accession":"0001373670-25-000071","document":"grbk-20250730.htm","filed":"2025-07-30","form":"8-K","items":"2.02,8.01,9.01","report_date":"2025-07-30"},{"accession":"0001373670-25-000057","document":"grbk-20250610.htm","filed":"2025-06-11","form":"8-K","items":"5.07","report_date":"2025-06-10"},{"accession":"0001373670-25-000052","document":"grbk-20250430.htm","filed":"2025-04-30","form":"DEF 14A","items":"","report_date":"2025-06-10"},{"accession":"0001373670-25-000050","document":"grbk-20250331.htm","filed":"2025-04-30","form":"10-Q","items":"","report_date":"2025-03-31"},{"accession":"0001373670-25-000049","document":"grbk-20250430.htm","filed":"2025-04-30","form":"8-K","items":"2.02,8.01,9.01","report_date":"2025-04-30"},{"accession":"0001373670-25-000041","document":"grbk-20250317.htm","filed":"2025-03-19","form":"8-K","items":"5.02","report_date":"2025-03-17"},{"accession":"0001373670-25-000007","document":"grbk-20241231.htm","filed":"2025-02-26","form":"10-K","items":"","report_date":"2024-12-31"},{"accession":"0001373670-25-000005","document":"grbk-20250226.htm","filed":"2025-02-26","form":"8-K","items":"2.02,9.01","report_date":"2025-02-26"},{"accession":"0001373670-25-000002","document":"grbk-20250217.htm","filed":"2025-02-19","form":"8-K","items":"8.01","report_date":"2025-02-17"},{"accession":"0001373670-24-000090","document":"grbk-20241213.htm","filed":"2024-12-18","form":"8-K","items":"1.01,2.03,9.01","report_date":"2024-12-13"},{"accession":"0000929638-24-003941","document":"13da.htm","filed":"2024-11-15","form":"SC 13D/A","items":"","report_date":""},{"accession":"0001373670-24-000084","document":"grbk-20240930.htm","filed":"2024-10-30","form":"10-Q","items":"","report_date":"2024-09-30"}],"former_names":[{"from":"2006-12-08T05:00:00.000Z","name":"BioFuel Energy Corp.","to":"2014-10-22T04:00:00.000Z"}],"gleif_parents":[],"headquarters":[],"insiders":[{"accession":"0002138876-26-000004","acquired_disposed":"A","code":"A","date":"2026-06-15","derivative":true,"filed":"2026-06-15","following_shares":"1375.0","form":"4","owners":["PARK ERIC JOHN"],"plan_10b5_1":false,"price":"0.0","security":"Performance Based Restricted Stock Units","shares":"1375.0"},{"accession":"0001628280-26-042502","acquired_disposed":"D","code":"S","date":"2026-06-09","derivative":false,"filed":"2026-06-11","following_shares":"77674.0","form":"4","owners":["Press Richard S"],"plan_10b5_1":false,"price":"70.59","security":"Common Stock","shares":"3000.0"},{"accession":"0001628280-26-042502","acquired_disposed":"D","code":"S","date":"2026-06-09","derivative":false,"filed":"2026-06-11","following_shares":"80674.0","form":"4","owners":["Press Richard S"],"plan_10b5_1":false,"price":"70.58","security":"Common Stock","shares":"2000.0"}],"legal_name":null,"lei":null,"lei_status":null,"lei_updated_at":null,"names":[],"parent_exceptions":[],"parents":[],"wikidata_id":null},"research_built_at":"2026-09-26T02:15:54.599486+00:00","reviewed_events":[],"reviewed_events_coverage":"selective; not a complete event history; accounting series not reconciled","sources":[{"coverage":"8004 issuers; up to 32 recent company reports and 8 ownership-change filings per issuer","id":"sec","license":"SEC public-information reuse","license_url":"https://www.sec.gov/about/privacy-information","name":"SEC submissions","retrieved_at":"2026-09-25T02:47:31.892837+00:00","status":"ok","url":"https://www.sec.gov/search-filings/edgar-application-programming-interfaces"},{"coverage":"1612 unambiguous CIK-linked entities; coverage is incomplete","id":"wikidata","license":"CC0-1.0","license_url":"https://www.wikidata.org/wiki/Wikidata:Licensing","name":"Wikidata structured data","retrieved_at":"2026-09-22T06:21:19.731359+00:00","status":"ok","url":"https://www.wikidata.org/"},{"coverage":"1177 checked identities; 0 unavailable records","id":"gleif","license":"CC0-1.0","license_url":"https://www.gleif.org/en/meta/lei-data-terms-of-use","name":"GLEIF legal entity reference data","retrieved_at":"2026-09-22T06:23:07.999545+00:00","status":"ok","url":"https://www.gleif.org/en/lei-data/gleif-api"},{"coverage":"4 selected series; gaps remain missing","id":"fed","license":"Public domain (selected government series)","license_url":"https://www.federalreserve.gov/disclaimer.htm","name":"Federal Reserve Board H.15","retrieved_at":"2026-09-25T02:47:54.711666+00:00","status":"ok","url":"https://www.federalreserve.gov/releases/h15/"},{"coverage":"9 selected series; gaps remain missing","id":"bls","license":"Public domain","license_url":"https://www.bls.gov/opub/copyright-information.htm","name":"Bureau of Labor Statistics","retrieved_at":"2026-09-25T02:47:56.047588+00:00","status":"ok","url":"https://www.bls.gov/developers/"},{"coverage":"2026 Q2: filings in this completed quarter; not a live transaction feed","id":"insiders","license":"SEC public-information reuse","license_url":"https://www.sec.gov/about/privacy-information","name":"SEC insider transactions","retrieved_at":"2026-09-22T06:21:11.750296+00:00","status":"ok","url":"https://www.sec.gov/data-research/sec-markets-data/insider-transactions-data-sets"}]}