Description of Business and Basis of Presentation (Details) $ in Thousands	1 Months Ended	3 Months Ended			6 Months Ended
	Jan. 31, 2020 USD ($) market	Jun. 30, 2020 USD ($)	Mar. 31, 2020 USD ($)	Jun. 30, 2019 USD ($)	Jun. 30, 2020 USD ($)	Jun. 30, 2019 USD ($)	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Other receivables		$ 61,000			$ 61,000		$ 91,000
Allowance for credit losses					27,941	$ 14,707
Goodwill impairment		0		$ 0	198,169	0
Allowance for credit losses		38,114		20,717	38,114	20,717	$ 19,651	$ 20,222
Commerce Services
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Goodwill impairment					198,169
Global Ecommerce | Commerce Services
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Carrying value percentage							20.00%
Goodwill impairment			$ 198,000		198,169
COVID-19
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Allowance for credit losses		$ 12,000		$ 4,000	$ 28,000	$ 15,000
Disposed of by Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Other receivables	$ 24,000
Number of smaller markets sold | market	6