XML 64 R53.htm IDEA: XBRL DOCUMENT
v3.4.0.3

FAIR VALUE DISCLOSURES - Schedule of Fair Value of Fixed-Rate Debt (Details) - Senior Notes [Member] - Level 2 [Member] - USD ($) | Mar. 31, 2016 | Dec. 31, 2015
--- | --- | ---
4.50% senior notes due 2018 [Member] |  |
Debt Instrument [Line Items] |  |
Aggregate Principal | $ 175,000,000 | $ 175,000,000
Fair value of fixed-rate debt |  |
Estimated Fair Value | 176,750,000 | 175,000,000
7.15% senior notes due 2020 [Member] |  |
Debt Instrument [Line Items] |  |
Aggregate Principal | 300,000,000 | 300,000,000
Fair value of fixed-rate debt |  |
Estimated Fair Value | 316,500,000 | 315,750,000
7.00% senior notes due 2022 [Member] |  |
Debt Instrument [Line Items] |  |
Aggregate Principal | 300,000,000 | 300,000,000
Fair value of fixed-rate debt |  |
Estimated Fair Value | 319,500,000 | 313,500,000
6.00% senior notes due 2025 [Member] |  |
Debt Instrument [Line Items] |  |
Aggregate Principal | 200,000,000 | 200,000,000
Fair value of fixed-rate debt |  |
Estimated Fair Value | 200,000,000 | 197,500,000
1.875% convertible senior notes due 2032 [Member] |  |
Debt Instrument [Line Items] |  |
Aggregate Principal | 126,500,000 | 126,500,000
Fair value of fixed-rate debt |  |
Estimated Fair Value | $ 124,761,000 | $ 124,128,000

X
- Definition Face (par) amount of debt instrument at time of issuance. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=64930739&loc=d3e28878-108400 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28551-108399 + Details
Name: | us-gaap_DebtInstrumentFaceAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=73719730&loc=d3e13433-108611 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=73719730&loc=d3e13476-108611 + Details
Name: | us-gaap_DebtInstrumentFairValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
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
- References No definition available. + Details
Name: | us-gaap_FinancialInstrumentsFinancialLiabilitiesBalanceSheetGroupingsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_LongtermDebtTypeAxis=us-gaap_SeniorNotesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel2Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

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

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

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