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Equity (Details) (USD $) In Millions, except Share data, unless otherwise specified	1 Months Ended	3 Months Ended								12 Months Ended
	Mar. 31, 2007 Right	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014 D	Dec. 31, 2013	Dec. 31, 2012	Mar. 21, 2007
Equity [Abstract]
Authorized capitalization of common stock (in shares)		300,000,000us-gaap_CommonStockSharesAuthorized				300,000,000us-gaap_CommonStockSharesAuthorized				300,000,000us-gaap_CommonStockSharesAuthorized	300,000,000us-gaap_CommonStockSharesAuthorized
Par value of common stock (in dollars per share)		$ 0.01us-gaap_CommonStockParOrStatedValuePerShare								$ 0.01us-gaap_CommonStockParOrStatedValuePerShare			$ 0.01us-gaap_CommonStockParOrStatedValuePerShare
Authorized capitalization of preferred stock (in shares)		3,500,000us-gaap_PreferredStockSharesAuthorized								3,500,000us-gaap_PreferredStockSharesAuthorized
Par value of preferred stock per share (in dollars per share)		$ 0.01us-gaap_PreferredStockParOrStatedValuePerShare								$ 0.01us-gaap_PreferredStockParOrStatedValuePerShare
Number of rights per common stock share distributed as dividends	1mtw_ClassOfWarrantOrRightNumberOfRightsPerCommonStockShareDistributedAsDividends
Number of shares of common stock the registered holder of each right is entitled to purchase when exercisable (in shares)		1us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights								1us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights
Purchase price of each common stock share following the exercise of rights (in dollars per share)		$ 110.00us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1								$ 110.00us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
Rights exercisable after public announcement of an acquisition or right to acquire 20% or more of outstanding common stock shares (in number of days)										10mtw_ClassOfWarrantOrRightNumberOfDaysRightsBecomeExercisableFollowingPublicAnnouncementOfAcquisitionOrRightToAcquire
Beneficial ownership by a person or group of affiliated persons before rights become exercisable (as a percent)										20.00%mtw_ClassOfWarrantOrRightMinimumPercentageOfBeneficialOwnershipAcquiredBeforeRightsAreExercisable
Rights exercisable after tender offer or exchange offer to acquire 20% or more of entity's outstanding common stock shares (in number of days)										10mtw_ClassOfWarrantOrRightNumberOfDaysRightsBecomeExercisableFollowingCommencementOfTenderOrExchangeOffer
Dividends per common share (in dollars per share)		$ 0.08us-gaap_CommonStockDividendsPerShareCashPaid	$ 0.00us-gaap_CommonStockDividendsPerShareCashPaid	$ 0.00us-gaap_CommonStockDividendsPerShareCashPaid	$ 0.00us-gaap_CommonStockDividendsPerShareCashPaid	$ 0.08us-gaap_CommonStockDividendsPerShareCashPaid	$ 0.00us-gaap_CommonStockDividendsPerShareCashPaid	$ 0.00us-gaap_CommonStockDividendsPerShareCashPaid	$ 0.00us-gaap_CommonStockDividendsPerShareCashPaid	$ 0.08us-gaap_CommonStockDividendsPerShareCashPaid	$ 0.08us-gaap_CommonStockDividendsPerShareCashPaid	$ 0.08us-gaap_CommonStockDividendsPerShareCashPaid
Number of shares authorized to be repurchased (in shares)		10,000,000us-gaap_StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased								10,000,000us-gaap_StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased
Aggregate number of shares repurchased (in shares)										7,600,000us-gaap_TreasuryStockSharesAcquired
Aggregate cost of shares repurchased										$ 49.8us-gaap_TreasuryStockValueAcquiredCostMethod

X

- Definition

Represents the minimum percentage of beneficial ownership of the entity's outstanding common stock shares acquired by a person or group of affiliated persons before rights become exercisable.

+ References

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Represents the number of days that the rights become exercisable following the commencement of a tender offer or exchange offer resulting in the beneficial ownership of 20 percent or more of the entity's outstanding common stock shares.

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Represents the number of rights for each outstanding share of common stock distributed as dividends.

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Exercise price per share or per unit of warrants or rights outstanding.

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Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares.

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Aggregate dividends paid during the period for each share of common stock outstanding.

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Face amount or stated value per share of common stock.

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The maximum number of common shares permitted to be issued by an entity's charter and bylaws.

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Face amount or stated value per share of preferred stock nonredeemable or redeemable solely at the option of the issuer.

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The number of shares authorized to be repurchased by an entity's Board of Directors under a stock repurchase plan.

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Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method.

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