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Percentage of proceeds from equity issuance.

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Ratio of the book value of all risk assets owned by the company and the subsidiaries to the company's tangible net worth.

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Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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Description of minimum financial levels (for example, tangible net worth and working capital) and achievement of certain financial ratios (for example, working capital ratio and debt service coverage ratio), and adherence to certain clauses which generally require or restrict certain actions (for example, entering into a debt arrangement with equal or greater seniority, and selling or discontinuing a certain business segment or material subsidiary) to be in compliance with the covenant clauses of the debt agreement. May also include a discussion of the adverse consequences that would result if the entity violates or fails to satisfy the covenants.

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Face (par) amount of debt instrument at time of issuance.

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Contractual interest rate for funds borrowed, under the debt agreement.

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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.

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Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

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The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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The fee, expressed as a percentage of the line of credit facility, for the line of credit facility regardless of whether the facility has been used.

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Date the credit facility terminates, in CCYY-MM-DD format.

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Amount of increase (decrease) of the credit facility.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Including the current and noncurrent portions, aggregate carrying amount of all types of notes payable, as of the balance sheet date, with initial maturities beyond one year or beyond the normal operating cycle, if longer.

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The cash inflow from additional borrowings, net of cash paid to third parties in connection with debt origination.

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The cash outflow for a borrowing supported by a written promise to pay an obligation.

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Notes Payable and Revolving Line of Credit (Narrative) (Details)							1 Months Ended							6 Months Ended
	Apr. 10, 2017 USD ($)	Feb. 24, 2017 USD ($)	Aug. 19, 2016 USD ($)	Jul. 31, 2015 USD ($)	Jul. 30, 2015 USD ($)	Oct. 21, 2014 USD ($)	May 31, 2017 USD ($)	Apr. 30, 2017 USD ($)	Jan. 31, 2017 USD ($)	Oct. 31, 2015 USD ($)	Apr. 30, 2015 USD ($)	Feb. 28, 2015 USD ($)	May 31, 2014 USD ($)	Jun. 30, 2017 USD ($) loan	Feb. 23, 2017 USD ($)	Dec. 31, 2016 USD ($)	Aug. 18, 2016 USD ($)	Jun. 30, 2016 USD ($)	Dec. 22, 2015 USD ($)	Dec. 21, 2015 USD ($)
Debt Instrument [Line Items]
Line of credit facility, outstanding amount																$ 195,000,000
Outstanding amount, mortgage loans held for sale														$ 10,551,000
Initial Senior Notes [Member]
Debt Instrument [Line Items]
Principal amount													$ 200,000,000
Net proceeds from issuance of senior debt													$ 193,300,000
Discount rate													99.239%
Maturity year													2022
Initial Exchange Notes [Member]
Debt Instrument [Line Items]
Principal amount												$ 200,000,000
Interest rate												6.875%
Maturity year												2022
Notes outstanding														$ 378,600,000
April 2015 Senior Notes [Member]
Debt Instrument [Line Items]
Principal amount											$ 60,000,000
Net proceeds from issuance of senior debt											$ 58,500,000
Interest rate											6.875%
Discount rate											98.26%
Maturity year											2022
October 2015 Exchange Notes [Member]
Debt Instrument [Line Items]
Principal amount										$ 60,000,000
Interest rate										6.875%
Maturity year										2022
Insurance Premium Note [Member]
Debt Instrument [Line Items]
Number of notes payable \| loan														1
Interest rate														3.88%
Maturity date														2017-12
Insurance premium notes, outstanding														$ 3,500,000				$ 6,000,000
Repayments of notes														$ 100,000
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Line of credit facility. maximum borrowing capacity						$ 80,000,000
Letter of credit sublimit						20,000,000
Covenant description														The Credit Agreement also requires us to maintain (i) a leverage ratio of not more than 1.50 to 1.0 as of the last day of any fiscal quarter, based upon our and our subsidiaries' (on a consolidated basis) ratio of debt to tangible net worth, (ii) an interest coverage ratio of not less than 1.50 to 1.0 for any four fiscal quarter period, based upon our and our subsidiaries' (on a consolidated basis) ratio of EBITDA to cash interest expense, (iii) a consolidated tangible net worth of not less than the sum of $250 million, plus 50% of the net proceeds of any issuances of equity interests by us and the guarantors of the Revolving Credit Facility, plus 50% of the amount of our and our subsidiaries' consolidated net income, (iv) liquidity of not less than $25 million, and (v) a risk asset ratio of not more than 1.25 to 1.0, based upon the ratio of the book value of all risk assets owned by us and our subsidiaries to our tangible net worth. As a result of the issuance of our 5.875% senior notes, our leverage ratio was 1.58 to 1.0 as of June 30, 2017. We have received a waiver from the Administrative Agent and the Required Lenders (as defined in the Credit Agreement) regarding the leverage ratio exceeding the 1.50 to 1.0 requirement under the Credit Agreement as of June 30, 2017. The waiver is applicable until our Compliance Certificate is due for the fiscal quarter ended September 30, 2017.
Commitment fee percentage														0.20%
Consolidated tangible net worth														$ 250,000,000
Percentage of proceeds from equity issuance														50.00%
Percentage of subsidiaries' consolidated net income														50.00%
Liquidity value														$ 25,000,000
Revolving Credit Facility [Member] \| Texas Capital Bank [Member]
Debt Instrument [Line Items]
Maturity date					Oct. 21, 2017
Line of credit facility. maximum borrowing capacity					$ 120,000,000	$ 120,000,000
Revolving Credit Facility [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Leverage ratio														1.50
Interest coverage ratio														1.50
Risk asset ratio														1.25
Revolving Credit Facility [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Leverage ratio														1.0
Interest coverage ratio														1.0
Risk asset ratio														1.0
Revolving Credit Facility [Member] \| London Interbank Offered Rate (LIBOR) [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Basis spread on variable rate														3.25%
Revolving Credit Facility [Member] \| London Interbank Offered Rate (LIBOR) [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Basis spread on variable rate														2.75%
Revolving Credit Facility [Member] \| Base Rate [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Basis spread on variable rate														2.25%
Revolving Credit Facility [Member] \| Base Rate [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Basis spread on variable rate														1.75%
Revolving Credit Facility [Member] \| First Modification Agreement [Member] \| Texas Capital Bank [Member]
Debt Instrument [Line Items]
Line of credit facility. maximum borrowing capacity				$ 200,000,000																$ 200,000,000
Revolving Credit Facility [Member] \| First Modification Agreement [Member] \| Texas Capital Bank [Member] \| Extended Maturity [Member]
Debt Instrument [Line Items]
Maturity date				Oct. 21, 2018
Revolving Credit Facility [Member] \| First Modification Agreement [Member] \| Bank of America [Member]
Debt Instrument [Line Items]
Uncommitted option to increase credit facility				$ 100,000,000	$ 80,000,000
Revolving Credit Facility [Member] \| Second Modification Agreement [Member] \| Texas Capital Bank [Member]
Debt Instrument [Line Items]
Line of credit facility. maximum borrowing capacity																			$ 300,000,000
Revolving Credit Facility [Member] \| Third Modification Agreement [Member] \| Texas Capital Bank [Member]
Debt Instrument [Line Items]
Maturity date			Oct. 21, 2019
Line of credit facility. maximum borrowing capacity			$ 380,000,000														$ 300,000,000
Line of credit facility, increased amount			$ 80,000,000
Revolving Credit Facility [Member] \| Commitment Increase Agreement [Member] \| Texas Capital Bank [Member]
Debt Instrument [Line Items]
Line of credit facility. maximum borrowing capacity		$ 400,000,000													$ 380,000,000
Line of credit facility, increased amount		$ 20,000,000
Revolving Mortgage Loan Repurchase Facility [Member] \| Master Repurchase Agreement [Member] \| Inspire Home Loans Inc [Member]
Debt Instrument [Line Items]
Line of credit facility, termination date	Apr. 09, 2018
Revolving Mortgage Loan Repurchase Facility [Member] \| Master Repurchase Agreement [Member] \| Inspire Home Loans Inc [Member] \| Branch Banking And Trust Company [Member]
Debt Instrument [Line Items]
Principal amount	$ 25,000,000
January 2017 Senior Notes [Member]
Debt Instrument [Line Items]
Principal amount									$ 125,000,000
Net proceeds from issuance of senior debt									$ 125,400,000
Interest rate									6.875%
Discount rate									102.00%
Maturity year									2022
April 2017 Exchange Notes [Member]
Debt Instrument [Line Items]
Principal amount								$ 125,000,000
Interest rate								6.875%
Maturity year								2022
May 2017 Senior Notes [Member]
Debt Instrument [Line Items]
Principal amount							$ 400,000,000
Net proceeds from issuance of senior debt							$ 395,500,000
Interest rate							5.875%
Discount rate							100.00%
Maturity year							2025
Notes outstanding														$ 394,800,000
5.875% Senior Notes [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Leverage ratio														1.58
5.875% Senior Notes [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Leverage ratio														1.0