XML 53 R41.htm IDEA: XBRL DOCUMENT
v3.5.0.2

Debt Senior Notes (Details) $ / shares in Units, shares in Millions | 6 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Jun. 30, 2016 USD ($) $ / shares shares | Jan. 15, 2021 | Jan. 14, 2020 | Jan. 14, 2019 | Dec. 31, 2015 USD ($)
Debt Instrument [Line Items] |  |  |  |  |
Senior notes due 2021 - net | $ 295,125,000 |  |  |  | $ 294,727,000
Preferred Stock, Dividend Rate, Percentage | 9.75% |  |  |  |
Restricted Payments Basket | $ 135,100,000 |  |  |  | $ 128,500,000
2021 Senior Notes [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Senior notes due 2021 - net | $ 300,000,000 |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage | 6.75% |  |  |  |
Debt Instrument, Redemption Price, Percentage of Principal Amount Redeemed |  | 100.00% | 101.688% | 103.375% |
2017 Convertible Senior Notes [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Convertible senior subordinated notes | $ 57,500,000 |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage | 3.25% |  |  |  |
Debt Instrument, Convertible, Conversion Ratio | 42.0159 |  |  |  |
Debt Instrument Convertible Principal Amount Used In Conversion Rate Calculation | $ 1,000 |  |  |  |
Debt Instrument, Convertible, Conversion Price | $ / shares | $ 23.80 |  |  |  |
Stock Issued During Period, Shares, Other | shares | 2.4 |  |  |  |
2018 Convertible Senior Notes [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Convertible senior subordinated notes | $ 86,250,000 |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage | 3.00% |  |  |  |
Debt Instrument, Convertible, Conversion Ratio | 30.9478 |  |  |  |
Debt Instrument Convertible Principal Amount Used In Conversion Rate Calculation | $ 1,000 |  |  |  |
Debt Instrument, Convertible, Conversion Price | $ / shares | $ 32.31 |  |  |  |
Stock Issued During Period, Shares, Other | shares | 2.7 |  |  |  |
Base of restricted payments basket income calculation [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Other Restrictions on Payment of Dividends | $ 125,000,000 |  |  |  |
Percentage of our aggregate consolidated net income added to base amount of calculation [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Percent restrictions on payment of dividends | 50.00% |  |  |  |
Percentage of our aggregate consolidated net income subtracted from base amount of calculation [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Percent restrictions on payment of dividends | 100.00% |  |  |  |
Percentage of net cash proceeds from sale of qualified equity interests added to base and income/loss amount in calculation [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Percent restrictions on payment of dividends | 100.00% |  |  |  |

X
- Definition Debt instrument, convertible, principal amount used in conversion rate calculation. + References No definition available. + Details
Name: | mho_DebtInstrumentConvertiblePrincipalAmountUsedInConversionRateCalculation
Namespace Prefix: | mho_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Percent restrictions on payment of dividends per restricted payments basket + References No definition available. + Details
Name: | mho_Percentrestrictionsonpaymentofdividends
Namespace Prefix: | mho_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Restricted Payments Basket, as defined in the indenture governing the Company's 2018 Senior Notes + References No definition available. + Details
Name: | mho_RestrictedPaymentsBasket
Namespace Prefix: | mho_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | instant

X
- Definition Restrictions on payment of dividends - beginning amount for calculation + References No definition available. + Details
Name: | mho_Restrictionsonpaymentofdividends
Namespace Prefix: | mho_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | instant

X
- Definition Including the current and noncurrent portions, the carrying value of convertible subordinated debt, as of the balance sheet date, initially scheduled to be repaid after one year or beyond the normal operating cycle if longer. This form of debt can be exchanged for a specified amount of another security, typically the entity's common stock, at the option of the issuer or the holder, and places a lender in a lien position behind debt having a higher priority of repayment in liquidation of the entity's assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(16)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
Name: | us-gaap_ConvertibleSubordinatedDebt
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The price per share of the conversion feature embedded in the debt instrument. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 5 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6928298&loc=SL6031898-161870 + Details
Name: | us-gaap_DebtInstrumentConvertibleConversionPrice1
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition Ratio applied to the conversion of debt instrument into equity with equity shares divided by debt principal amount. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 6 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21506-112644 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Conversion Rate -URI http://asc.fasb.org/extlink&oid=6509012 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(5)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21475-112644 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21521-112644 + Details
Name: | us-gaap_DebtInstrumentConvertibleConversionRatio1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | duration

X
- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

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_DebtInstrumentLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage of principal amount of debt redeemed. + References No definition available. + Details
Name: | us-gaap_DebtInstrumentRedemptionPricePercentageOfPrincipalAmountRedeemed
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition The percentage rate used to calculate dividend payments on preferred stock. + References No definition available. + Details
Name: | us-gaap_PreferredStockDividendRatePercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Including the current and noncurrent portions, carrying value as of the balance sheet date of Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer). Senior note holders are paid off in full before any payments are made to junior note holders. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16(a)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.16) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
Name: | us-gaap_SeniorNotes
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Number of shares of stock issued attributable to transactions classified as other. + References No definition available. + Details
Name: | us-gaap_StockIssuedDuringPeriodSharesOther
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mho_A2021SeniorNotesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mho_A2017ConvertibleSeniorNotesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mho_A2018ConvertibleSeniorNotesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | mho_RestrictedPaymentsBasketCalculationAxis=mho_BaseofrestrictedpaymentsbasketincomecalculationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | mho_RestrictedPaymentsBasketCalculationAxis=mho_PercentageofouraggregateconsolidatednetincomeaddedtobaseamountofcalculationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | mho_RestrictedPaymentsBasketCalculationAxis=mho_PercentageofouraggregateconsolidatednetincomesubtractedfrombaseamountofcalculationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | mho_RestrictedPaymentsBasketCalculationAxis=mho_PercentageofnetcashproceedsfromsaleofqualifiedequityinterestsaddedtobaseandincomelossamountincalculationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |