- DefinitionLand Under Purchase And Options Contracts, Not Recorded, Refundable, Uncommitted, Cash Deposits
| Name: | mth_LandUnderPurchaseAndOptionContractsNotRecordedRefundableUncommittedCashDeposits | 
| Namespace Prefix: | mth_ | 
| Data Type: | xbrli:monetaryItemType | 
| Balance Type: | debit | 
| Period Type: | instant |