Acquisitions Acquisitions (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Jun. 01, 2018	Dec. 31, 2017
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents					$ 15.7
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Less Noncontrolling Interest					11.7
Payments to Acquire Businesses, Gross			$ 90.0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables					16.8
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Inventory					18.5
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment					27.0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill					18.7
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Noncurrent Assets					0.6
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets					97.3
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Accounts Payable					35.8
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities					5.7
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Other					17.1
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities					58.6
Business Combination, Acquisition of Less than 100 Percent, Noncontrolling Interest, Fair Value					27.0
Business Acquisition, Expected Percentage of Voting Interests To Be Acquired	75.00%		75.00%
Business Combination, Consideration Transferred			$ 74.3
Business Acquisition, Name of Entity to be Acquired Entity in a Proposed Transaction			Zhejiang Maximal Forklift Co., Ltd. (“Maximal”)
Business Acquisition, Description of Entity To Be Acquired			Maximal is a manufacturer of utility and standard lift trucks and specialized materials handling equipment founded in 2006 in the Hangzhou, Zhejiang Province of China
Business Combination, Description of Proposed Transaction			Under the terms of the ETA, upon the closing, the Company paid $81.0 million to a jointly-controlled bank account under the name of KNSN, and KNSN is only allowed to use such amount to repay intercompany indebtedness owed by KNSN to Maximal and to remove existing related-party guarantees provided by Maximal. Any balance amount remaining after fulfilling the specified purposes will belong to KNSN. In addition, upon the closing, the Company paid $9.0 million to an escrow account, which will be released to KNSN in two installments. The first installment of $2.7 million will be released on the second anniversary of the closing and the second installment of $6.3 million will be released on the third anniversary of the closing subject to a number of conditions. KNSN is obligated to indemnify the Company from and against any breach of representations and warranties and any liabilities and losses associated with the pre-closing operations of Maximal.
Business Combination, Description of Proposed Contingent Consideration Arrangements			In addition, the Company signed an incentive agreement with Mr. Jin Hong Lu, a key member of senior management of Maximal and the majority shareholder of KNSN. Pursuant to this agreement, the Company will pay $10.0 million to Mr. Lu by the third anniversary of the closing under the ETA, provided that Mr. Lu, his immediate family members and any affiliates fully comply with the non-competition, conflict of interest, non-solicitation, and compliance covenants set forth in the agreement. Pursuant to the terms of the ETA, Mr. Lu signed and issued a Guarantee and Undertaking Letter for the benefit of the Company, guaranteeing KNSN’s performance of all terms under the ETA. In the case of any breach of the ETA by KNSN, Mr. Lu shall be liable and shall indemnify the Company against any losses arising from such breach in accordance with the ETA and applicable laws.
Goodwill	$ 133.3		$ 133.3		78.3	$ 59.1
Business Combination, Segment Reporting, Assignment of Goodwill Not Complete			JAPIC segment
Business Combination, Separately Recognized Transactions, Additional Disclosures, Acquisition Cost Expensed	$ 1.9	$ 0.5	$ 2.4	$ 1.4
Business Combination, Provisional Information, Initial Accounting Incomplete, Reasons			Given the timing and complexity of the Maximal acquisition, the allocation of the purchase price is preliminary and will likely change in future periods, perhaps significantly as fair value estimates of the assets acquired and liabilities assumed are refined during the measurement period. The Company is in the process of obtaining a third-party valuation of the assets acquired and liabilities assumed; thus the provisional measurements are subject to change. In addition, the cash consideration paid will be finalized with KNSN and is subject to customary working capital, cash and debt adjustments. The Company will complete the purchase price allocation no later than the second quarter of 2019.
Distribution Rights [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill					9.7
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life In Years			20
Patents [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill					5.6
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life In Years			7
Trademarks [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill					$ 3.4
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life In Years			20