Long-term Debt And Finance Leases - Summary of Long-term Debt and Finance Leases (Parenthetical) (Details) - 6% Convertible Notes Due 2023	9 Months Ended	12 Months Ended
Sep. 30, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Debt stated interest rate percentage	6.00%	6.00%
Debt, maturity year	2023	2023

Contractual interest rate for funds borrowed, under the debt agreement.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Name:	us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant