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Amount of litigation expense, including but not limited to legal, forensic, accounting, and investigative fees.

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Amount of decrease in unrecognized tax benefits resulting from settlements with taxing authorities.

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Commitments and Contingencies (Details) $ in Thousands, $ in Millions	12 Months Ended
	Dec. 31, 2019 USD ($)	Dec. 31, 2018 CAD ($)	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)
Commitments and Contingencies Disclosure [Abstract]
Litigation Settlement, Expense	$ 0	$ 5	$ 0	$ 4,009
Future contractual rental payments for non-cancelable operating leases
Unrecognized Tax Benefits, Decrease Resulting from Settlements with Taxing Authorities	200
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	200
Unrecorded Unconditional Purchase Obligation, Due in Next Twelve Months	4,385
Recorded Unconditional Purchase Obligation, Due in Rolling Year Three	4,394
Recorded Unconditional Purchase Obligation, Due in Rolling Year Five	1,715
Unrecorded Unconditional Purchase Obligation, Due after Five Years	524
Unrecorded Unconditional Purchase Obligation	$ 11,018