XML 34 R25.htm IDEA: XBRL DOCUMENT
v3.24.0.1

Stock Compensation (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2023
Share-Based Payment Arrangement [Abstract] |
Summary of Stock Option Activity | The following table summarizes stock option activity for the three-year period ended December 31, 2023:
|  | Number of shares |  |  | Weighted- average exercise price |
Options outstanding - December 31, 2020 |  |  | 316,194 |  |  | $ | 37.75 |
Options exercised |  |  | (88,932 | ) |  |  | 22.89 |
Options outstanding - December 31, 2021 |  |  | 227,262 |  |  | $ | 43.56 |
Options exercised |  |  | (25,986 | ) |  |  | 27.04 |
Options forfeited |  |  | (4,529 | ) |  |  | 60.82 |
Options outstanding - December 31, 2022 |  |  | 196,747 |  |  | $ | 45.35 |
Options exercised |  |  | (30,433 | ) |  |  | 31.77 |
Options outstanding - December 31, 2023 |  |  | 166,314 |  |  | $ | 47.83 |
Exercisable options — |  |  |  |  |  |
December 31, 2021 |  |  | 170,484 |  |  | $ | 38.31 |
December 31, 2022 |  |  | 163,316 |  |  |  | 42.23 |
December 31, 2023 |  |  | 147,937 |  |  |  | 46.06 |
Schedule Share Based Compensation Intrinsic Value Of Stock Options Table Text Block | The following table summarizes the aggregate intrinsic value related to options exercised, outstanding and exercisable as of and for the years ended December 31:
|  | 2023 |  |  | 2022 |  |  | 2021 |
|  | (In thousands) |
Exercised |  | $ | 3,919 |  |  | $ | 2,175 |  |  | $ | 7,085 |
Outstanding |  |  | 17,718 |  |  |  | 12,529 |  |  |  | 14,316 |
Exercisable |  |  | 16,023 |  |  |  | 10,910 |  |  |  | 11,635 |
Schedule of Fair Value of Nonvested Shares | The fair value of nonvested shares is determined based on the market price of the shares on the grant date.
| Shares |  |  | Fair value per share |
Nonvested at December 31, 2020 |  | 57,549 |  |  | $ | 57.33 |
Granted |  | 17,430 |  |  |  | 99.90 |
Vested |  | (16,528 | ) |  |  | 49.31 |
Forfeited |  | (1,384 | ) |  |  | 58.68 |
Nonvested at December 31, 2021 |  | 57,067 |  |  | $ | 72.62 |
Granted |  | 21,637 |  |  |  | 97.41 |
Vested |  | (23,302 | ) |  |  | 66.87 |
Forfeited |  | (4,327 | ) |  |  | 86.53 |
Nonvested at December 31, 2022 |  | 51,075 |  |  | $ | 84.85 |
Granted |  | 21,261 |  |  |  | 125.11 |
Vested |  | (30,408 | ) |  |  | 75.97 |
Forfeited |  | (836 | ) |  |  | 97.68 |
Nonvested at December 31, 2023 |  | 41,092 |  |  | $ | 111.99 |
Summary of Performance Share Activity | A summary of performance share activity for the three years ended December 31 is as follows:
| Performance Shares |  |  | Weighted Average Grant Date Fair Value |
Nonvested at December 31, 2020 |  | — |  |  | $ | — |
Granted |  | 14,748 |  |  |  | 100.37 |
Adjustment for expected performance results |  | 7,374 |  |  |  | 100.37 |
Nonvested at December 31, 2021 |  | 22,122 |  |  | $ | 100.37 |
Granted |  | 16,870 |  |  |  | 97.62 |
Adjustment for expected performance results |  | 6,746 |  |  |  | 97.62 |
Forfeited |  | (2,892 | ) |  |  | 99.43 |
Nonvested at December 31, 2022 |  | 42,846 |  |  | $ | 98.92 |
Granted |  | 18,698 |  |  |  | 123.77 |
Adjustment for expected performance results |  | 10,701 |  |  |  | 120.74 |
Nonvested at December 31, 2023 |  | 72,245 |  |  | $ | 108.59 |

X
- Definition Schedule Share-based Compensation, Intrinsic Value of Stock Options [Table Text Block] + References No definition available. + Details
Name: | bmi_ScheduleShareBasedCompensationIntrinsicValueOfStockOptionsTableTextBlock
Namespace Prefix: | bmi_
Data Type: | dtr-types: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 the number and weighted-average grant date fair value for restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock units that were granted, vested, or forfeited during the year. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
Name: | us-gaap_ScheduleOfShareBasedCompensationRestrictedStockUnitsAwardActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (d) -SubTopic 10 -Topic 718 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (e) -SubTopic 10 -Topic 718 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
Name: | us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the number and weighted-average grant date fair value for outstanding performance shares. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Subparagraph (c) -Paragraph 2 -SubTopic 10 -Topic 718 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
Name: | us-gaap_ShareBasedCompensationPerformanceSharesAwardOutstandingActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration