Discontinued Operations	9 Months Ended
Sep. 30, 2021
Discontinued Operations and Disposal Groups [Abstract]
Discontinued Operations	Discontinued OperationsDiscontinued operations for the three and nine months ended September 30, 2021 and 2020 include working capital adjustments, tax-related adjustments and other adjustments in connection with the sale of our Software Solutions business in 2019 and Production Mail business in 2018. Discontinued operations for the nine months ended September 30, 2021 also includes a tax charge related to the sale of the Production Mail business and discontinued operations for the nine months ended September 30, 2020 also includes the gain on the sale of our software business in Australia, which closed in January 2020.

The entire disclosure related to a disposal group. Includes, but is not limited to, a discontinued operation, disposal classified as held-for-sale or disposed of by means other than sale or disposal of an individually significant component.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-URI http://asc.fasb.org/topic&trid=2155823

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-URI http://asc.fasb.org/subtopic&trid=2122178

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