XML 230 R130.htm IDEA: XBRL DOCUMENT
v3.22.1

Equity (Details) - Share Capital - $ / shares |  |  |  |  |  |  |  |  |  |  | 12 Months Ended |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Dec. 28, 2021 | Jun. 04, 2021 | Jan. 22, 2021 | Jan. 11, 2021 | Nov. 30, 2020 | Nov. 11, 2020 | Oct. 05, 2020 | Aug. 10, 2020 | Jun. 05, 2020 | Jun. 04, 2020 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 14, 2021
Equity [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Ordinary shares, par value (in dollars per share) |  |  |  |  |  |  |  |  |  |  | $ 0.10 |  | $ 0.05
Authorized share capital [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Authorized shares: Balance at the start of the year (in shares) |  |  |  |  |  |  |  |  |  |  | 119,326,923 | 68,750,000 |
Stock authorized during period (in shares) |  | 35,000,000 |  | 25,673,077 |  | 7,500,000 |  | 20,000,000 |  | 23,076,923 |  |  |
Authorized shares: Balance at the end of the year (in shares) |  |  |  |  |  |  |  |  |  |  | 180,000,000 | 119,326,923 |
Shares issued (1): |  |  |  |  |  |  |  |  |  |  |  |  |
Issued : Balance at the start of the year (in shares) |  |  |  |  |  |  |  |  |  |  | 110,159,352 | 56,139,033 |
Issue of common shares (in shares) | 13,333,333 |  | 27,058,823 |  | 5,000,000 |  | 25,943,396 |  | 23,076,923 |  |  | 54,020,319 |
Issued : Balance at the end of the year (in shares) |  |  |  |  |  |  |  |  |  |  | 137,218,175 | 110,159,352 |
Treasury shares held by company (in shares) |  |  |  |  |  |  |  |  |  |  | 406,333 | 729,858 |
Outstanding shares (in shares) |  |  |  |  |  |  |  |  |  |  | 136,811,842 | 109,429,494 |

X
- Definition Authorized Share cCpital + References No definition available. + Details
Name: | borr_AuthorizedShareCCpitalAbstract
Namespace Prefix: | borr_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Issued And Outstanding Share Capital + References No definition available. + Details
Name: | borr_IssuedAndOutstandingShareCapitalAbstract
Namespace Prefix: | borr_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Stock Authorized During Period, Shares + References No definition available. + Details
Name: | borr_StockAuthorizedDuringPeriodShares
Namespace Prefix: | borr_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Face amount or stated value per share of common stock. + References Reference 1: 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(29)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
Name: | us-gaap_CommonStockParOrStatedValuePerShare
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition The maximum number of common shares permitted to be issued by an entity's charter and bylaws. + References Reference 1: 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(29)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
Name: | us-gaap_CommonStockSharesAuthorized
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury. + References Reference 1: 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(29)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
Name: | us-gaap_CommonStockSharesIssued
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=123467817&loc=d3e21463-112644 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(29)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
Name: | us-gaap_CommonStockSharesOutstanding
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

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

X
- Definition Number of new stock issued during the period. + References Reference 1: 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(29)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=123467817&loc=d3e21463-112644 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770 Reference 4: 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(28)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
Name: | us-gaap_StockIssuedDuringPeriodSharesNewIssues
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of previously issued common shares repurchased by the issuing entity and held in treasury. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6405813&loc=d3e23239-112655 + Details
Name: | us-gaap_TreasuryStockCommonShares
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant