Related Party Transactions	3 Months Ended
Mar. 31, 2019
Related Party Transactions [Abstract]
Related Party Transactions	Related Party Transactions During the three months ended March 31, 2019 and 2018, the Company incurred construction-related costs on behalf of its unconsolidated joint ventures totaling $1.7 million and $2.1 million, respectively. As of March 31, 2019 and December 31, 2018, $0.5 million and $0.4 million, respectively, are included in due from affiliates in the accompanying condensed consolidated balance sheets related to such costs. The Company has entered into agreements with its unconsolidated joint ventures to provide management services related to the underlying projects (collectively referred to as the "Management Agreements"). Pursuant to the Management Agreements, the Company receives a management fee based on each project’s revenues. During the three months ended March 31, 2019 and 2018, the Company earned $0.5 million and $1.0 million, respectively, in management fees, which have been recorded as fee building revenues in the accompanying condensed consolidated statements of operations. As of March 31, 2019 and December 31, 2018, $0.1 million and $0.2 million, respectively, of management fees are included in due from affiliates in the accompanying condensed consolidated balance sheets. One member of the Company's board of directors beneficially owns more than 10% of the Company's outstanding common stock through an affiliated entity, IHP Capital Partners VI, LLC, and is also affiliated with entities that have investments in two of the Company's unconsolidated joint ventures, TNHC Meridian Investors LLC (which is an owner of another entity, TNHC Newport LLC, which entity owned our "Meridian" project) and TNHC Russell Ranch LLC ("Russell Ranch"). The Company's investment in these two joint ventures was $7.7 million at March 31, 2019 and $6.5 million at December 31, 2018. A former member of the Company's board of directors who served during 2018 is affiliated with entities that have investments in three of the Company's unconsolidated joint ventures, Arantine Hills Holdings LP ("Bedford"), Calabasas Village LP, and TNHC-TCN Santa Clarita, LP. As of March 31, 2019 and December 31, 2018, the Company's investment in these three unconsolidated joint ventures totaled $11.0 million and $12.0 million, respectively. TL Fab LP, an affiliate of one of the Company's non-employee directors, was engaged by the Company and some of its unconsolidated joint ventures as a trade contractor to provide metal fabrication services. For the three months ended March 31, 2019 and 2018, the Company incurred $33,000 and $65,000, respectively, for these services. For the same periods, the Company's unconsolidated joint ventures incurred $0 and $0.4 million, respectively, for these services. Of these costs, $0 and $7,000 was due to TL Fab LP from the Company at March 31, 2019 and December 31, 2018, respectively, and $0 and $8,000 was due to TL Fab LP from the Company's unconsolidated joint ventures at March 31, 2019 and December 31, 2018, respectively. In its ordinary course of business, the Company enters into agreements to purchase lots from unconsolidated land development joint ventures of which it is a member. In accordance with ASC 360-20, Property, Plant and Equipment - Real Estate Sales ("ASC 360-20"), the Company defers its portion of the underlying gain from the joint venture's sale of these lots. When the Company purchases lots directly from the joint venture, the deferred gain is recorded as a reduction to the Company's land basis on the purchased lots. In this instance, the gain is ultimately recognized when the Company delivers lots to third-party home buyers at the time of the home closing. At March 31, 2019 and December 31, 2018, $0.2 million and $0.2 million, respectively, of deferred gain from lot transactions with the TNHC-HW Cannery LLC ("Cannery"), Bedford and Russell Ranch unconsolidated joint ventures remained unrecognized and included as a reduction to land basis in the accompanying condensed consolidated balance sheets. The Company’s land purchase agreement with the Cannery provides for reimbursement of certain fee credits. The Company was reimbursed $0.1 million in fee credits from the Cannery during the three months ended March 31, 2018. As of March 31, 2019 and December 31, 2018, $37,000 in fee credits was due to the Company from the Cannery, which is included in due from affiliates in the accompanying condensed consolidated balance sheets. On June 18, 2015, the Company entered into an agreement that effectively transitioned Joseph Davis' role within the Company from that of Chief Investment Officer to that of a non-employee consultant to the Company effective June 26, 2015 ("Transition Date"). As of the Transition Date, Mr. Davis ceased being an employee of the Company and became an independent contractor performing consulting services. For his services, he is compensated $5,000 per month. His current agreement terminates on June 26, 2019 with the option to extend the agreement one year, if mutually consented to by the parties. Either party may terminate the agreement at any time for any or no reason. At March 31, 2019, no fees were due to Mr. Davis for his consulting services. Additionally, the Company entered into a construction agreement effective September 7, 2017, with The Joseph and Terri Davis Family Trust Dated August 25, 1999 ("Davis Family Trust") of which Joseph Davis is a trustee. The agreement is a fee building contract pursuant to which the Company acts in the capacity of a general contractor to build a single family detached home on land owned by the Davis Family Trust. For its services, the Company will receive a contractor's fee and the Davis Family Trust will reimburse the Company's field overhead costs. During the three months ended March 31, 2019 and 2018, the Company billed the Davis Family Trust $0.5 million and $38,000, respectively, including reimbursable construction costs and the Company's contractor's fees which are included in fee building revenues in the accompanying condensed consolidated statements of operations. Contractor's fees comprised $15,000 and $0 of the total billings for the three months ended March 31, 2019 and 2018, respectively. The Company recorded $0.5 million and $38,000 for the three months ended March 31, 2019 and 2018, respectively, for the cost of this fee building revenue which are included in fee building cost of sales in the accompanying condensed consolidated statements of operations. At March 31, 2019 and December 31, 2018, the Company was due $0.1 million and $0.6 million, respectively, from the Davis Family Trust for construction draws, which are included in due from affiliates in the accompanying condensed consolidated balance sheets. On February 17, 2017, the Company entered into a consulting agreement that transitioned Mr. Stelmar's role from that of Chief Investment Officer to a non-employee consultant to the Company. While an employee of the Company, Mr. Stelmar served as an employee director of the Company's Board of Directors. The agreement provides that effective upon Mr. Stelmar's termination of employment, he shall become a non-employee director and shall receive the compensation and be subject to the requirements of a non-employee director pursuant to the Company's policies. For his consulting services, Mr. Stelmar is compensated $6,000 per month. The current term is through August 17, 2019 and may be extended upon mutual consent of the parties. Additionally, Mr. Stelmar's outstanding restricted stock unit equity award granted in 2016 continued to vest in accordance with its original terms based on his continued provision of consulting services rather than continued employment and fully vested during the 2019 first quarter. At March 31, 2019 and December 31, 2018, no fees were due to Mr. Stelmar for his consulting services. On February 14, 2019, the Company entered into a consulting agreement that transitioned Mr. Redwitz's role from that of Chief Investment Officer to a non-employee consultant to the Company effective March 1, 2019. For his consulting services, Mr. Redwitz is compensated $10,000 per month. The agreement terminates March 1, 2020 and may be extended upon mutual consent of the parties. At March 31, 2019, no fees were due to Mr. Redwitz for his consulting services. At March 31, 2018, the Company had advances outstanding of approximately $3.0 million to an unconsolidated joint venture, Encore McKinley Village LLC. The note bore interest at 10% per annum and was fully repaid during the 2018 second quarter. For the three months ended March 31, 2019 and 2018, the Company earned $0 million and $0.1 million, respectively, in interest income on the unsecured promissory note which is included in equity in net income of unconsolidated joint ventures in the accompanying condensed consolidated statements of operations. The Company entered into two transactions in each of 2018 and 2017 to purchase land from affiliates of IHP Capital Partners VI, LLC, which owns more than 10% of the Company's outstanding common stock and is affiliated with one member of the Company's board of directors. The first 2017 agreement allows the Company the option to purchase lots in Northern California in a phased takedown for a gross purchase price of $16.1 million with profit participation and master marketing fees due to the seller as outlined in the contract. As of March 31, 2019, the Company has taken down approximately two-thirds of the lots, paid $0.3 million in master marketing fees, and has a $0.3 million nonrefundable deposit outstanding on the remaining lots. The second 2017 transaction allows the Company to purchase finished lots in Northern California which includes customary profit participation and is structured as an optioned takedown. The total purchase price, including the cost for the finished lot development and the option, is expected to be approximately $56.7 million, and depends on timing of takedowns, as well as our obligation to pay certain fees and costs during the option maintenance period. As of March 31, 2019, the Company has made a $8.6 million nonrefundable deposit, reimbursed the owner $0.1 million for fees and costs, paid $2.8 million in option payments, and had taken down approximately 8% of the lots. In 2018, the Company agreed to purchase and complete the takedown of finished lots in Northern California for a gross purchase price of $8.0 million with additional profit participation, marketing fees and certain reimbursements due to the seller as outlined in the agreement. At March 31, 2019, the Company had paid $0.3 million in master marketing fees and reimbursed the seller $0.2 million in costs related to this contract. Also during 2018, the Company entered an agreement to purchase land in a master-plan community in Arizona for an estimated purchase price of $3.8 million plus profit participation and marketing fees pursuant to contract terms. The Company has an outstanding, nonrefundable deposit of $0.3 million related to this contract and had not taken down any lots as of March 31, 2019. In the first quarter 2018, the Company entered into an agreement with its Bedford joint venture that is affiliated with one former member of the Company's board of directors for the option to purchase lots in phased takedowns. As of March 31, 2019, the Company has made a $1.5 million nonrefundable deposit as consideration for this option, and a portion of the deposit will be applied to the purchase price across the phases. The gross purchase price of the land is $10.0 million with profit participation due to seller as outlined in the contract. The Company has taken down approximately one-half of the contracted lots and $0.9 million of the nonrefundable deposit remains outstanding. During the fourth quarter 2018, the Company entered into a second option agreement with the Bedford joint venture to purchase lots in phased takedowns. The Company made a $1.4 million nonrefundable deposit as consideration for the option, and a portion of the deposit will be applied to the purchase price across the phases. The gross purchase price of the land is $10.5 million with profit participation due to the seller pursuant to the agreement. At March 31, 2019, the Company had taken down approximately 42% of the optioned lots and $0.8 million of the deposit remained outstanding. FMR LLC beneficially owned over 10% of the Company's common stock during 2018, and an affiliate of FMR LLC ("Fidelity") provides investment management and record keeping services to the Company’s 401(k) Plan. For the three months ended March 31, 2018, the Company paid Fidelity approximately $4,000 for 401(k) Plan record keeping and investment management services. The participants in the Company's 401(k) Plan paid Fidelity approximately $2,000 for the three months ended March 31, 2018 for record keeping and investment management services. As of March 31, 2019, FMR LLC owns less than 10% of the Company's common stock. The Company has provided credit enhancements in connection with joint venture borrowings in the form of LTV maintenance agreements in order to secure the joint venture's performance under the loans and maintenance of certain LTV ratios. In addition, the Company has provided completion agreements regarding specific performance for certain projects whereby the Company is required to complete the given project with funds provided by the beneficiary of the agreement. For more information regarding these agreements please refer to Note 11. Subsequent to March 31, 2019, an amendment to our TNHC Russell Ranch LLC joint venture agreement was executed. The amendment outlines the proportionate funding of certain additional capital required for the joint venture. For additional information see Part II, Item 5 of this Quarterly Report on Form 10-Q.

Related Party Transactions

During the three months ended March 31, 2019 and 2018, the Company incurred construction-related costs on behalf of its unconsolidated joint ventures totaling $1.7 million and $2.1 million, respectively. As of March 31, 2019 and December 31, 2018, $0.5 million and $0.4 million, respectively, are included in due from affiliates in the accompanying condensed consolidated balance sheets related to such costs.

The Company has entered into agreements with its unconsolidated joint ventures to provide management services related to the underlying projects (collectively referred to as the "Management Agreements"). Pursuant to the Management Agreements, the Company receives a management fee based on each project’s revenues. During the three months ended March 31, 2019 and 2018, the Company earned $0.5 million and $1.0 million, respectively, in management fees, which have been recorded as fee building revenues in the accompanying condensed consolidated statements of operations. As of March 31, 2019 and December 31, 2018, $0.1 million and $0.2 million, respectively, of management fees are included in due from affiliates in the accompanying condensed consolidated balance sheets.

One member of the Company's board of directors beneficially owns more than 10% of the Company's outstanding common stock through an affiliated entity, IHP Capital Partners VI, LLC, and is also affiliated with entities that have investments in two of the Company's unconsolidated joint ventures, TNHC Meridian Investors LLC (which is an owner of another entity, TNHC Newport LLC, which entity owned our "Meridian" project) and TNHC Russell Ranch LLC ("Russell Ranch"). The Company's investment in these two joint ventures was $7.7 million at March 31, 2019 and $6.5 million at December 31, 2018. A former member of the Company's board of directors who served during 2018 is affiliated with entities that have investments in three of the Company's unconsolidated joint ventures, Arantine Hills Holdings LP ("Bedford"), Calabasas Village LP, and TNHC-TCN Santa Clarita, LP. As of March 31, 2019 and December 31, 2018, the Company's investment in these three unconsolidated joint ventures totaled $11.0 million and $12.0 million, respectively.

TL Fab LP, an affiliate of one of the Company's non-employee directors, was engaged by the Company and some of its unconsolidated joint ventures as a trade contractor to provide metal fabrication services. For the three months ended March 31, 2019 and 2018, the Company incurred $33,000 and $65,000, respectively, for these services. For the same periods, the Company's unconsolidated joint ventures incurred $0 and $0.4 million, respectively, for these services. Of these costs, $0 and $7,000 was due to TL Fab LP from the Company at March 31, 2019 and December 31, 2018, respectively, and $0 and $8,000 was due to TL Fab LP from the Company's unconsolidated joint ventures at March 31, 2019 and December 31, 2018, respectively.

In its ordinary course of business, the Company enters into agreements to purchase lots from unconsolidated land development joint ventures of which it is a member. In accordance with ASC 360-20, Property, Plant and Equipment - Real Estate Sales ("ASC 360-20"), the Company defers its portion of the underlying gain from the joint venture's sale of these lots. When the Company purchases lots directly from the joint venture, the deferred gain is recorded as a reduction to the Company's land basis on the purchased lots. In this instance, the gain is ultimately recognized when the Company delivers lots to third-party home buyers at the time of the home closing. At March 31, 2019 and December 31, 2018, $0.2 million and $0.2 million, respectively, of deferred gain from lot transactions with the TNHC-HW Cannery LLC ("Cannery"), Bedford and Russell Ranch unconsolidated joint ventures remained unrecognized and included as a reduction to land basis in the accompanying condensed consolidated balance sheets.

The Company’s land purchase agreement with the Cannery provides for reimbursement of certain fee credits. The Company was reimbursed $0.1 million in fee credits from the Cannery during the three months ended March 31, 2018. As of March 31, 2019 and December 31, 2018, $37,000 in fee credits was due to the Company from the Cannery, which is included in due from affiliates in the accompanying condensed consolidated balance sheets.

On June 18, 2015, the Company entered into an agreement that effectively transitioned Joseph Davis' role within the Company from that of Chief Investment Officer to that of a non-employee consultant to the Company effective June 26, 2015 ("Transition Date"). As of the Transition Date, Mr. Davis ceased being an employee of the Company and became an independent contractor performing consulting services. For his services, he is compensated $5,000 per month. His current agreement terminates on June 26, 2019 with the option to extend the agreement one year, if mutually consented to by the parties. Either party may terminate the agreement at any time for any or no reason. At March 31, 2019, no fees were due to Mr. Davis for his consulting services. Additionally, the Company entered into a construction agreement effective September 7, 2017, with The Joseph and Terri Davis Family Trust Dated August 25, 1999 ("Davis Family Trust") of which Joseph Davis is a trustee. The agreement is a fee building contract pursuant to which the Company acts in the capacity of a general contractor to build a single family detached home on land owned by the Davis Family Trust. For its services, the Company will receive a contractor's fee and the Davis Family Trust will reimburse the Company's field overhead costs. During the three months ended March 31, 2019 and 2018, the Company billed the Davis Family Trust $0.5 million and $38,000, respectively, including reimbursable construction costs and the Company's contractor's fees which are included in fee building revenues in the accompanying condensed consolidated statements of operations. Contractor's fees comprised $15,000 and $0 of the total billings for the three months ended March 31, 2019 and 2018, respectively. The Company recorded $0.5 million and $38,000 for the three months ended March 31, 2019 and 2018, respectively, for the cost of this fee building revenue which are included in fee building cost of sales in the accompanying condensed consolidated statements of operations. At March 31, 2019 and December 31, 2018, the Company was due $0.1 million and $0.6 million, respectively, from the Davis Family Trust for construction draws, which are included in due from affiliates in the accompanying condensed consolidated balance sheets.

On February 17, 2017, the Company entered into a consulting agreement that transitioned Mr. Stelmar's role from that of Chief Investment Officer to a non-employee consultant to the Company. While an employee of the Company, Mr. Stelmar served as an employee director of the Company's Board of Directors. The agreement provides that effective upon Mr. Stelmar's termination of employment, he shall become a non-employee director and shall receive the compensation and be subject to the requirements of a non-employee director pursuant to the Company's policies. For his consulting services, Mr. Stelmar is compensated $6,000 per month. The current term is through August 17, 2019 and may be extended upon mutual consent of the parties. Additionally, Mr. Stelmar's outstanding restricted stock unit equity award granted in 2016 continued to vest in accordance with its original terms based on his continued provision of consulting services rather than continued employment and fully vested during the 2019 first quarter. At March 31, 2019 and December 31, 2018, no fees were due to Mr. Stelmar for his consulting services.

On February 14, 2019, the Company entered into a consulting agreement that transitioned Mr. Redwitz's role from that of Chief Investment Officer to a non-employee consultant to the Company effective March 1, 2019. For his consulting services, Mr. Redwitz is compensated $10,000 per month. The agreement terminates March 1, 2020 and may be extended upon mutual consent of the parties. At March 31, 2019, no fees were due to Mr. Redwitz for his consulting services.

At March 31, 2018, the Company had advances outstanding of approximately $3.0 million to an unconsolidated joint venture, Encore McKinley Village LLC. The note bore interest at 10% per annum and was fully repaid during the 2018 second quarter. For the three months ended March 31, 2019 and 2018, the Company earned $0 million and $0.1 million, respectively, in interest income on the unsecured promissory note which is included in equity in net income of unconsolidated joint ventures in the accompanying condensed consolidated statements of operations.

The Company entered into two transactions in each of 2018 and 2017 to purchase land from affiliates of IHP Capital Partners VI, LLC, which owns more than 10% of the Company's outstanding common stock and is affiliated with one member of the Company's board of directors. The first 2017 agreement allows the Company the option to purchase lots in Northern California in a phased takedown for a gross purchase price of $16.1 million with profit participation and master marketing fees due to the seller as outlined in the contract. As of March 31, 2019, the Company has taken down approximately two-thirds of the lots, paid $0.3 million in master marketing fees, and has a $0.3 million nonrefundable deposit outstanding on the remaining lots. The second 2017 transaction allows the Company to purchase finished lots in Northern California which includes customary profit participation and is structured as an optioned takedown. The total purchase price, including the cost for the finished lot development and the option, is expected to be approximately $56.7 million, and depends on timing of takedowns, as well as our obligation to pay certain fees and costs during the option maintenance period. As of March 31, 2019, the Company has made a $8.6 million nonrefundable deposit, reimbursed the owner $0.1 million for fees and costs, paid $2.8 million in option payments, and had taken down approximately 8% of the lots. In 2018, the Company agreed to purchase and complete the takedown of finished lots in Northern California for a gross purchase price of $8.0 million with additional profit participation, marketing fees and certain reimbursements due to the seller as outlined in the agreement. At March 31, 2019, the Company had paid $0.3 million in master marketing fees and reimbursed the seller $0.2 million in costs related to this contract. Also during 2018, the Company entered an agreement to purchase land in a master-plan community in Arizona for an estimated purchase price of $3.8 million plus profit participation and marketing fees pursuant to contract terms. The Company has an outstanding, nonrefundable deposit of $0.3 million related to this contract and had not taken down any lots as of March 31, 2019.

In the first quarter 2018, the Company entered into an agreement with its Bedford joint venture that is affiliated with one former member of the Company's board of directors for the option to purchase lots in phased takedowns. As of March 31, 2019, the Company has made a $1.5 million nonrefundable deposit as consideration for this option, and a portion of the deposit will be applied to the purchase price across the phases. The gross purchase price of the land is $10.0 million with profit participation due to seller as outlined in the contract. The Company has taken down approximately one-half of the contracted lots and $0.9 million of the nonrefundable deposit remains outstanding. During the fourth quarter 2018, the Company entered into a second option agreement with the Bedford joint venture to purchase lots in phased takedowns. The Company made a $1.4 million nonrefundable deposit as consideration for the option, and a portion of the deposit will be applied to the purchase price across the phases. The gross purchase price of the land is $10.5 million with profit participation due to the seller pursuant to the agreement. At March 31, 2019, the Company had taken down approximately 42% of the optioned lots and $0.8 million of the deposit remained outstanding.

FMR LLC beneficially owned over 10% of the Company's common stock during 2018, and an affiliate of FMR LLC ("Fidelity") provides investment management and record keeping services to the Company’s 401(k) Plan. For the three months ended March 31, 2018, the Company paid Fidelity approximately $4,000 for 401(k) Plan record keeping and investment management services. The participants in the Company's 401(k) Plan paid Fidelity approximately $2,000 for the three months ended March 31, 2018 for record keeping and investment management services. As of March 31, 2019, FMR LLC owns less than 10% of the Company's common stock.

The Company has provided credit enhancements in connection with joint venture borrowings in the form of LTV maintenance agreements in order to secure the joint venture's performance under the loans and maintenance of certain LTV ratios. In addition, the Company has provided completion agreements regarding specific performance for certain projects whereby the Company is required to complete the given project with funds provided by the beneficiary of the agreement. For more information regarding these agreements please refer to Note 11.

Subsequent to March 31, 2019, an amendment to our TNHC Russell Ranch LLC joint venture agreement was executed. The amendment outlines the proportionate funding of certain additional capital required for the joint venture. For additional information see Part II, Item 5 of this Quarterly Report on Form 10-Q.