XML 61 R45.htm IDEA: XBRL DOCUMENT
v3.25.1

Equity (Details) | Jan. 30, 2025 USD ($) $ / shares shares | Jul. 31, 2024 shares | Mar. 31, 2025 USD ($) $ / shares shares | Jan. 29, 2025 $ / shares | Dec. 31, 2024 $ / shares shares | Mar. 11, 2024 USD ($) | Sep. 14, 2023 USD ($) | Aug. 02, 2022 USD ($) | Jul. 31, 2019 trading_day $ / shares shares
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Equity [Line Items] |  |  |  |  |  |  |  |  |
Preferred stock authorized (in shares) |  |  | 10,000,000 |  | 10,000,000 |  |  |  |
Preferred stock par value (in dollars per share) | $ / shares |  |  | $ 0.0001 |  | $ 0.0001 |  |  |  |
Preferred stock issued (in shares) |  |  | 0 |  | 0 |  |  |  |
Preferred stock outstanding (in shares) |  |  | 0 |  | 0 |  |  |  |
Common stock, authorized (in shares) |  |  | 500,000,000 |  | 500,000,000 |  |  |  |
Common stock, par value (in dollars per share) | $ / shares |  |  | $ 0.0001 |  | $ 0.0001 |  |  |  |
Common Stock |  |  |  |  |  |  |  |  |
Equity [Line Items] |  |  |  |  |  |  |  |  |
Earnout shares |  |  |  |  |  |  |  |  | 3,100,000
Common Stock | Minimum and Second Target Earnout Shares |  |  |  |  |  |  |  |  |
Equity [Line Items] |  |  |  |  |  |  |  |  |
Earnout shares |  |  |  |  |  |  |  |  | 2,800,000
Earnout share forfeitures |  | 2,800,000 |  |  |  |  |  |  |
Common Stock | Maximum Target Earnout Shares |  |  |  |  |  |  |  |  |
Equity [Line Items] |  |  |  |  |  |  |  |  |
Earnout shares |  |  |  |  |  |  |  |  | 300,000
Earnout shares, share price consideration (in dollars per share) | $ / shares |  |  |  |  |  |  |  |  | $ 19.00
Earnout shares, trading days threshold | trading_day |  |  |  |  |  |  |  |  | 20
Earnout shares, consecutive trading days threshold | trading_day |  |  |  |  |  |  |  |  | 30
Common Stock |  |  |  |  |  |  |  |  |
Equity [Line Items] |  |  |  |  |  |  |  |  |
Stock repurchase program | $ |  |  |  |  |  |  |  | $ 30,000,000 |
Additional authorized amount | $ |  |  |  |  |  | $ 25,000,000 | $ 25,000,000 |  |
Amount available under repurchase program | $ |  |  | $ 1,900,000 |  |  |  |  |  |
Treasury Stock | Energy Capital Partners (ECP) |  |  |  |  |  |  |  |  |
Equity [Line Items] |  |  |  |  |  |  |  |  |
Shares repurchases (in shares) | 8,143,635 |  |  |  |  |  |  |  |
Shares repurchased, repurchase price | $ / shares | $ 4.00 |  |  |  |  |  |  |  |
Shares repurchased, discount percentage | 23.00% |  |  |  |  |  |  |  |
Common stock, closing market price per share | $ / shares |  |  |  | $ 5.19 |  |  |  |  |
Shares repurchased, amount | $ | $ 32,600,000 |  |  |  |  |  |  |  |

X
- Definition Common Stock, Closing Market Price Per Share + References No definition available. + Details
Name: | ctos_CommonStockClosingMarketPricePerShare
Namespace Prefix: | ctos_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of common shares for which certain stockholders agreed to restrictions, considered Earnout Shares + References No definition available. + Details
Name: | ctos_EarnoutShares
Namespace Prefix: | ctos_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Earnout Shares, Contingent Consideration Arrangements, Threshold Consecutive Trading Days + References No definition available. + Details
Name: | ctos_EarnoutSharesContingentConsiderationArrangementsThresholdConsecutiveTradingDays
Namespace Prefix: | ctos_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Earnout Shares, Contingent Consideration, Share Price + References No definition available. + Details
Name: | ctos_EarnoutSharesContingentConsiderationSharePrice
Namespace Prefix: | ctos_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition Earnout Shares, Contingent Consideration, Threshold Trading Days + References No definition available. + Details
Name: | ctos_EarnoutSharesContingentConsiderationThresholdTradingDays
Namespace Prefix: | ctos_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of earnout shares forfeitured during the period. + References No definition available. + Details
Name: | ctos_EarnoutSharesForfeitedDuringPeriodShares
Namespace Prefix: | ctos_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Equity [Line Items] + References No definition available. + Details
Name: | ctos_EquityLineItems
Namespace Prefix: | ctos_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Stock Repurchase Program, Additional Authorized Amount + References No definition available. + Details
Name: | ctos_StockRepurchaseProgramAdditionalAuthorizedAmount
Namespace Prefix: | ctos_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Treasury Stock Acquired, Discount, Percentage + References No definition available. + Details
Name: | ctos_TreasuryStockAcquiredDiscountPercentage
Namespace Prefix: | ctos_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Amount authorized for purchase of share under share repurchase plan. Includes, but is not limited to, repurchase of stock and unit of ownership. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 505 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481520/505-30-50-4 + Details
Name: | srt_StockRepurchaseProgramAuthorizedAmount1
Namespace Prefix: | srt_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Face amount or stated value per share of common stock. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 + 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 -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.6-04(16)(a)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479170/946-210-S99-1 + Details
Name: | us-gaap_CommonStockSharesAuthorized
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Face amount or stated value per share of preferred stock nonredeemable or redeemable solely at the option of the issuer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(28)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 505 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481112/505-10-50-13 + Details
Name: | us-gaap_PreferredStockParOrStatedValuePerShare
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition The maximum number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) permitted to be issued by an entity's charter and bylaws. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(28)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.6-04(16)(a)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479170/946-210-S99-1 + Details
Name: | us-gaap_PreferredStockSharesAuthorized
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of shares issued for nonredeemable preferred shares and preferred shares redeemable solely at option of issuer. Includes, but is not limited to, preferred shares issued, repurchased, and held as treasury shares. Excludes preferred shares classified as debt. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(28)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 505 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481112/505-10-50-13 + Details
Name: | us-gaap_PreferredStockSharesIssued
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Aggregate share number for all nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) held by stockholders. Does not include preferred shares that have been repurchased. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(28)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SX 210.6-05(4)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479170/946-210-S99-2 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 946 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 3 -Subparagraph (SX 210.6-09(4)(b)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479134/946-220-S99-3 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.6-04(16)(a)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479170/946-210-S99-1 Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 946 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 3 -Subparagraph (SX 210.6-09(7)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479134/946-220-S99-3 + Details
Name: | us-gaap_PreferredStockSharesOutstanding
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Amount remaining authorized for purchase of share under share repurchase plan. Includes, but is not limited to, repurchase of stock and unit of ownership. + References No definition available. + Details
Name: | us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Total cost of shares repurchased divided by the total number of shares repurchased. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481549/505-30-45-1 + Details
Name: | us-gaap_TreasuryStockAcquiredAverageCostPerShare
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of shares that have been repurchased during the period and are being held in treasury. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 2 -SubTopic 10 -Topic 505 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481112/505-10-50-2 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 505 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480008/505-10-S99-1 + Details
Name: | us-gaap_TreasuryStockSharesAcquired
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 2 -SubTopic 10 -Topic 505 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481112/505-10-50-2 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 505 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480008/505-10-S99-1 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481549/505-30-45-1 + Details
Name: | us-gaap_TreasuryStockValueAcquiredCostMethod
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_EquityInterestIssuedOrIssuableByTypeAxis=us-gaap_CommonStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ctos_EarnoutSharesAxis=ctos_MinimumAndSecondTargetEarnoutSharesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ctos_EarnoutSharesAxis=ctos_MaximumTargetEarnoutSharesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementEquityComponentsAxis=us-gaap_CommonStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementEquityComponentsAxis=us-gaap_TreasuryStockCommonMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_CounterpartyNameAxis=ctos_EnergyCapitalPartnersECPMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |