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Segment Information, Nature of Operations, and Certain Concentrations - Additional Information (Detail) | 12 Months Ended
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Dec. 31, 2015 MetropolitanArea Segment
Segment Reporting Information [Line Items] |
Number of metropolitan areas Ryan Homes product are sold | MetropolitanArea | 28
Senior Notes due 2022 [Member] |
Segment Reporting Information [Line Items] |
Senior notes interest rate | 3.95%
Senior notes maturity | Sep. 15, 2022
Homebuilding [Member] |
Segment Reporting Information [Line Items] |
Number of reportable segments | 4
Mortgage Banking [Member] |
Segment Reporting Information [Line Items] |
Number of reportable segments | 1
Geographic Concentration Risk | Homebuilding [Member] | District of Columbia [Member] |
Segment Reporting Information [Line Items] |
Revenue derived | 31.00%
Geographic Concentration Risk | Homebuilding [Member] | Maryland, Baltimore [Member] |
Segment Reporting Information [Line Items] |
Revenue derived | 13.00%

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- Definition For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=51801978&loc=d3e6351-108592 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=49121117&loc=d3e13531-108611 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=51801978&loc=d3e6404-108592 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 21 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=49121117&loc=d3e13537-108611 + Details
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