Goodwill and Other Intangible Assets - Changes in goodwill by reportable segment (Details) - USD ($)	3 Months Ended	10 Months Ended	12 Months Ended
	Mar. 31, 2019	Oct. 31, 2018	Dec. 31, 2018
Goodwill
Balance at the beginning of the period	$ 232,800,000
Balance at the end of the period	233,300,000		$ 232,800,000
Goodwill impairment	0
Americas
Goodwill
Balance at the beginning of the period	166,500,000	$ 166,500,000	166,500,000
Balance at the end of the period	166,500,000		166,500,000
Europe and Africa ("EURAF")
Goodwill
Balance at the beginning of the period		85,900,000	85,900,000
Foreign currency impact			(3,700,000)
Goodwill impairment		(82,200,000)
Middle East and Asia Pacific ("MEAP")
Goodwill
Balance at the beginning of the period	66,300,000	$ 68,900,000	68,900,000
Foreign currency impact	500,000		(2,600,000)
Balance at the end of the period	$ 66,800,000		$ 66,300,000