Credit Losses - Concentration Risk (Details)	9 Months Ended
Sep. 30, 2020
Arrow Group [Member] \| Accounts Receivable [Member]
Concentration Risk [Line Items]
Percent of gross accounts receivable (percent)	19.00%

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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