Commitments and Contingencies (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Aug. 31, 2019	Mar. 01, 2018
Long-term Purchase Commitment [Line Items]
Litigation Settlement, Amount Awarded from Other Party		$ 12.8
Future purchase obligations under Fluids supply agreement, aggregate	$ 95.0
Future purchase obligations under Fluids supply agreement, 2014	9.5
Future purchase obligations under Fluids supply agreement, 2015	9.5
Future purchase obligations under Fluids supply agreement, 2016	9.5
Future purchase obligations under Fluids supply agreement, 2017	9.5
Future purchase obligations under Fluids supply agreement, 2018	9.5
Future purchase obligations under Fluids supply agreement, after 2018 through 2029	47.3
Purchases under Fluids supply agreement	$ 18.7	$ 18.0	$ 16.1
Offshore Division [Member] | Discontinued Operations, Disposed of by Sale [Member]
Long-term Purchase Commitment [Line Items]
Disposal Group, Including Discontinued Operation, Consideration, Additional Receivable					$ 7.5
Disposal Group, Including Discontinued Operation, Consideration, Promissory Note Receivable, Interest Rate					1.52%
Disposal Group, Including Discontinued Operation, Reserve, Other Receivables				$ 1.5