XML 63 R35.htm IDEA: XBRL DOCUMENT
v3.19.3

STOCK BASED AND DEFERRED COMPENSATION (Tables) | 9 Months Ended
--- | ---
Sep. 30, 2019
Share-based Payment Arrangement [Abstract] |
Summary of Compensation Expense and Stock Award Activity | Below is a summary of compensation expense and stock award activity (dollars in thousands):
| Three Months Ended September 30, |  | Nine Months Ended September 30,
| 2019 |  | 2018 |  | 2019 |  | 2018
Stock-based compensation expense | $ | 5,657 |  |  | $ | 4,761 |  |  | $ | 15,719 |  |  | $ | 13,737 |
Non-vested shares granted | 3,314 |  |  | 9,083 |  |  | 385,328 |  |  | 315,247 |
Performance-based non-vested shares granted | — |  |  | — |  |  | 94,152 |  |  | 157,637 |
Restricted stock awards vested (includes performance-based awards) | 32,369 |  |  | 2,710 |  |  | 435,292 |  |  | 321,422 |
Summary of Additional Information Regarding Stock Plan | The following table includes additional information regarding our Stock Plans (dollars in thousands):
|  | As of
|  | September 30, 2019 |  | December 31, 2018
Unrecognized stock-based compensation cost |  | $ | 24,041 |  |  | $ | 24,954 |
Weighted average years expense recognition period |  | 2.42 |  |  | 2.24 |
Total equity awards outstanding (1) |  | 1,269,806 |  |  | 1,301,745 |
(1) Includes unvested restricted stock, performance-based awards (assuming 100% payout) and restricted stock units.

X
- Definition Schedule of Stock-based Compensation Expense and Cash Proceeds Received from Share-based Payment Awards [Table Text Block] + References No definition available. + Details
Name: | mth_ScheduleOfStockBasedCompensationExpenseAndCashProceedsReceivedFromShareBasedPaymentAwardsTableTextBlock
Namespace Prefix: | mth_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of cost not yet recognized and weighted-average period over which cost is expected to be recognized for nonvested award under share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfUnrecognizedCompensationCostNonvestedAwardsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration