Basis of Presentation and Significant Accounting Policies - Additional Information (Details) $ in Millions	3 Months Ended
	Mar. 31, 2020 USD ($) component segment	Mar. 31, 2019 USD ($)	Dec. 31, 2019 USD ($)
Long Lived Assets Held-for-sale [Line Items]
Number of reportable segments | segment	3
Number of components supplied to worldwide (more than) | component	1,300
Effective tax rate	23.20%	21.90%
Benefits recognized for excess tax benefits related to employee share-based payments	$ 0.7	$ 1.7
Gross unrecognized tax benefits	3.9
Restricted cash and cash equivalents	5.9
Total inventories	11.6		$ 17.1
Net gains on foreign exchange forward contracts	0.8
Recognized gain on FX forward contracts not designated as hedges	5.2	$ 1.6
Notional amount of foreign currency forward contracts	118.2
U.S. Commercial Nuclear Inspection and Maintenance Services Business | Disposal Group, Held-for-sale, Not Discontinued Operations
Long Lived Assets Held-for-sale [Line Items]
Assets held-for-sale	$ 18.3