Restricted Cash (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted cash	$ 83,469	$ 76,595
SettlementAssetsRestrictedCash	49,168	45,358	$ 49,189
Restricted Cash	34,301	31,237	$ 32,185
Cash held in trust or on behalf of others [Member]
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted cash	34,301	31,237
Collateral on bank credit arrangements and other [Member]
Restricted Cash and Cash Equivalents Items [Line Items]
SettlementAssetsRestrictedCash	4,802	9,432
Cash held in trust or on behalf of others [Member]
Restricted Cash and Cash Equivalents Items [Line Items]
SettlementAssetsRestrictedCash	$ 44,366	$ 35,926