XML 74 R60.htm IDEA: XBRL DOCUMENT
v3.22.0.1

FAIR VALUE DISCLOSURES - Schedule of Fair Value of Fixed-Rate Debt (Details) - Senior Notes [Member] - USD ($) | Dec. 31, 2021 | Apr. 30, 2021 | Dec. 31, 2020 | Jun. 30, 2017 | Jun. 30, 2015 | Apr. 30, 2012
--- | --- | --- | --- | --- | --- | ---
7.00% senior notes [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Aggregate Principal |  | $ 300,000,000 |  |  |  | $ 300,000,000
Fair value of fixed-rate debt |  |  |  |  |  |
Debt instrument, stated rate | 7.00% |  | 7.00% |  |  | 7.00%
7.00% senior notes [Member] | Level 2 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Aggregate Principal | $ 0 |  | $ 300,000,000 |  |  |
Fair value of fixed-rate debt |  |  |  |  |  |
Estimated Fair Value | 0 |  | $ 319,758,000 |  |  |
6.00% senior notes [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Aggregate Principal | $ 200,000,000 |  |  |  | $ 200,000,000 |
Fair value of fixed-rate debt |  |  |  |  |  |
Debt instrument, stated rate | 6.00% |  | 6.00% |  | 6.00% |
6.00% senior notes [Member] | Level 2 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Aggregate Principal | $ 400,000,000 |  | $ 400,000,000 |  |  |
Fair value of fixed-rate debt |  |  |  |  |  |
Estimated Fair Value | $ 446,520,000 |  | $ 451,913,000 |  |  |
5.125% senior notes [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Aggregate Principal |  |  |  | $ 300,000,000.0 |  |
Fair value of fixed-rate debt |  |  |  |  |  |
Debt instrument, stated rate | 5.125% |  | 5.125% | 5.125% |  |
5.125% senior notes [Member] | Level 2 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Aggregate Principal | $ 300,000,000 |  | $ 300,000,000 |  |  |
Fair value of fixed-rate debt |  |  |  |  |  |
Estimated Fair Value | $ 329,640,000 |  | 333,328,000 |  |  |
3.875% senior notes [Member] |  |  |  |  |  |
Fair value of fixed-rate debt |  |  |  |  |  |
Debt instrument, stated rate | 387.50% |  |  |  |  |
3.875% senior notes [Member] | Level 2 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Aggregate Principal | $ 450,000,000 |  | 0 |  |  |
Fair value of fixed-rate debt |  |  |  |  |  |
Estimated Fair Value | $ 472,500,000 |  | $ 0 |  |  |

X
- Definition Face (par) amount of debt instrument at time of issuance. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 1B -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=124435984&loc=d3e28551-108399 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=124429444&loc=SL124452920-239629 Reference 5: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 55 -Paragraph 69C -URI http://asc.fasb.org/extlink&oid=123466577&loc=SL123495737-112612 Reference 6: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 55 -Paragraph 69B -URI http://asc.fasb.org/extlink&oid=123466577&loc=SL123495735-112612 + 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/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 55 -Paragraph 69C -URI http://asc.fasb.org/extlink&oid=123466577&loc=SL123495737-112612 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 55 -Paragraph 69B -URI http://asc.fasb.org/extlink&oid=123466577&loc=SL123495735-112612 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=123594938&loc=d3e13433-108611 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 1D -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=123466505&loc=SL123495340-112611 + Details
Name: | us-gaap_DebtInstrumentFairValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 1B -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -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=120391452&loc=d3e13212-122682 + Details
Name: | us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix: | us-gaap_
Data Type: | dtr-types: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
- 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_SeniorNotesDueTwoThousandTwentyTwoMember
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_SeniorNotesDueTwoThousandTwentyFiveMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mth_A3875SeniorNotesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |