XML 14 R46.htm IDEA: XBRL DOCUMENT
v3.3.0.814

Segment Information (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2015 | Sep. 30, 2014 | Sep. 30, 2015 | Sep. 30, 2014 | Dec. 31, 2014
Segment Reporting Information [Line Items] |  |  |  |  |
Sale of residential units | $ 69,165 | $ 39,901 | $ 179,195 | $ 144,586 |
Sale of land and lots | 6,033 | 9,775 | 26,442 | 33,942 |
Gross profit | 15,808 | 15,024 | 49,447 | 47,355 |
Land Development |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Sale of land and lots |  |  | 26,442 | 33,942 |
Operating Segments |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Revenues | 75,198 | 49,676 | 205,637 | 178,528 |
Gross profit | 15,808 | 15,024 | 49,447 | 47,355 |
Assets | 318,027 |  | 318,027 |  | $ 274,303
Operating Segments | Land Development |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Sale of land and lots | 6,033 | 9,775 |  |  |
Gross Profit on Land and Lots | 1,816 | 2,355 | 7,347 | 8,613 |
Assets | 101,132 |  | 101,132 |  | 100,171
Texas | Operating Segments |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Sale of residential units | 26,438 | 19,042 | 89,585 | 54,035 |
Gross Profit, Home Building | 7,054 | 6,655 | 22,744 | 14,497 |
Assets | 57,679 |  | 57,679 |  | 44,771
Georgia | Operating Segments |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Sale of residential units | 42,727 | 20,859 | 89,610 | 90,551 |
Gross Profit, Home Building | 6,938 | $ 6,014 | 19,356 | $ 24,245 |
Assets | $ 159,216 |  | $ 159,216 |  | $ 129,361

X
- Definition Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the homebuilding revenue generation activity. + References No definition available. + Details
Name: | grbk_GrossProfitHomeBuilding
Namespace Prefix: | grbk_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Gross Profit on Land and Lots + References No definition available. + Details
Name: | grbk_GrossProfitonLandandLots
Namespace Prefix: | grbk_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1,2) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 + Details
Name: | us-gaap_GrossProfit
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Revenue related to the sale of homes and home building activities including design, development, general contracting, and renovation services for residential buildings, including single-family houses, multifamily housing, townhouses, apartments, and modular housing. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1(e)) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 + Details
Name: | us-gaap_HomeBuildingRevenue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Total of (1) improvements, (2) held-for-sale, (3) land and land under development, (4) construction-in-process, (5) mortgage loans held-in-inventory, and (6) other real estate investments which are considered inventory due to being held for sale or disposition. + References No definition available. + Details
Name: | us-gaap_InventoryRealEstate
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Revenue from the sale of land in the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1(e)) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 + Details
Name: | us-gaap_LandSales
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Revenue from the sale of commercial, industrial, or residential property during the period. This element is more likely than not relevant to an entity for which real estate operations are a principal activity. If real estate operations are not a principal activity, the reporting entity would likely use a gain (loss) on sale of property, plant, or equipment type element. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1(e)) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 + Details
Name: | us-gaap_SalesOfRealEstate
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_SegmentReportingInformationLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=grbk_LandDevelopmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ConsolidationItemsAxis=us-gaap_OperatingSegmentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementGeographicalAxis=stpr_TX
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementGeographicalAxis=stpr_GA
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |