Consolidated Statements of Changes in Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Noncontrolling Interest	Southgate Homes [Member]	Southgate Homes [Member] Retained Earnings	Southgate Homes [Member] Noncontrolling Interest	Centre Living [Member]	Centre Living [Member] Retained Earnings	Centre Living [Member] Noncontrolling Interest	CB JENI	CB JENI Retained Earnings	CB JENI Noncontrolling Interest
Retained Earnings (Accumulated Deficit)	$ 125,903
Stockholders' Equity Attributable to Noncontrolling Interest	$ 16,691
Common Stock, Shares, Issued	50,598,901
Common Stock, Value, Issued	$ 506
Treasury Stock, Shares	0
Treasury Stock, Common, Value	$ 0
Stockholders' Equity Attributable to Parent	416,347
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Additional Paid in Capital	289,938
Balance at Dec. 31, 2018	485,632
Balance at Dec. 31, 2017	433,038
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Amortization of deferred share-based compensation	404
APIC, Share-based Payment Arrangement, Option, Increase for Cost Recognition	288
Contributions from noncontrolling interests	$ 5
Stock Issued During Period, Shares, Acquisitions	20,000
Stock Issued During Period, Value, Acquisitions	$ 0	$ 0	$ 0
Temporary Equity, Accretion to Redemption Value, Adjustment			(2,145)
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Changes, Purchase of Interest by Parent					$ (891)	$ 891	$ (891)
Treasury Stock, Shares, Acquired	(136,756,000)
Treasury Stock, Value, Acquired, Cost Method	$ (981)
Issuance of common stock under 2014 Equity Plan (in shares)	140,211
Issuance of common stock under 2014 Omnibus Equity Incentive Plan	$ 1,082	1	1,081
Share-based Payment Arrangement, Decrease for Tax Withholding Obligation	$ (412)	0	412
Share-based Payment Arrangement, Shares Withheld for Tax Withholding Obligation	(39,228)
Distributions	$ (10,747)
Net Income (Loss) Attributable to Parent	51,623
Net Income (Loss) Attributable to Nonredeemable Noncontrolling Interest	11,332
Net Income (Loss), Including Portion Attributable to Nonredeemable Noncontrolling Interest	62,955
Retained Earnings (Accumulated Deficit)	177,526
Stockholders' Equity Attributable to Noncontrolling Interest	$ 17,281
Common Stock, Shares, Issued	50,719,884
Common Stock, Value, Issued	$ 507
Treasury Stock, Shares	(136,756)
Treasury Stock, Value	$ (981)
Stockholders' Equity Attributable to Parent	468,351
Additional Paid in Capital	291,299
Balance at Dec. 31, 2019	536,395
Balance at Dec. 31, 2018	485,632
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Amortization of deferred share-based compensation	489
APIC, Share-based Payment Arrangement, Option, Increase for Cost Recognition	236
Contributions from noncontrolling interests	$ 3,600
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Changes, Purchase of Interest by Parent								$ (264)	$ (264)	$ 264
Treasury Stock, Shares, Acquired	(255,183)
Treasury Stock, Value, Acquired, Cost Method	$ (2,186)
Issuance of common stock under 2014 Equity Plan (in shares)	219,181
Issuance of common stock under 2014 Omnibus Equity Incentive Plan	$ 1,466	3	1,463
Share-based Payment Arrangement, Decrease for Tax Withholding Obligation	$ (544)	1	543
Share-based Payment Arrangement, Shares Withheld for Tax Withholding Obligation	(59,116)
Distributions	$ (10,993)			$ (10,993)
Net Income (Loss) Attributable to Parent	58,656
Net Income (Loss) Attributable to Nonredeemable Noncontrolling Interest	2,184
Net Income (Loss), Including Portion Attributable to Nonredeemable Noncontrolling Interest	60,840
Retained Earnings (Accumulated Deficit)	235,027
Stockholders' Equity Attributable to Noncontrolling Interest	$ 13,227
Common Stock, Shares, Issued	50,879,949
Common Stock, Value, Issued	$ 509
Treasury Stock, Shares	(391,939)
Treasury Stock, Value	$ (3,167)
Treasury Stock, Common, Value	(3,167)
Stockholders' Equity Attributable to Parent	523,168
Additional Paid in Capital	290,799
Balance at Dec. 31, 2020	649,409
Balance at Dec. 31, 2019	536,395
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Amortization of deferred share-based compensation	497
Contributions from noncontrolling interests	$ 400
Temporary Equity, Accretion to Redemption Value, Adjustment			940
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Changes, Purchase of Interest by Parent											$ (936)	$ (936)	$ (936)
Issuance of common stock under 2014 Equity Plan (in shares)	249,617
Issuance of common stock under 2014 Omnibus Equity Incentive Plan	$ 1,600	3	1,597
Share-based Payment Arrangement, Decrease for Tax Withholding Obligation	$ (592)	$ 1	$ (591)
Share-based Payment Arrangement, Shares Withheld for Tax Withholding Obligation	(75,708)
Distributions	$ (5,251)
Net Income (Loss) Attributable to Parent	113,693
Net Income (Loss) Attributable to Nonredeemable Noncontrolling Interest	1,727
Net Income (Loss), Including Portion Attributable to Nonredeemable Noncontrolling Interest	115,420
Retained Earnings (Accumulated Deficit)	$ 349,656
Common stock, shares authorized (in shares)	100,000,000
Stockholders' Equity Attributable to Noncontrolling Interest	$ 9,167
Common Stock, Shares, Issued	51,053,858
Common Stock, Value, Issued	$ 511
Treasury Stock, Shares	(391,939)
Treasury Stock, Value	$ (3,167)
Treasury Stock, Common, Value	(3,167)
Stockholders' Equity Attributable to Parent	640,242
Additional Paid in Capital	$ 293,242