Restricted Cash (Tables)

12 Months Ended

Dec. 31, 2018

Restricted Cash [Abstract]

Restrictions on Cash and Cash Equivalents [Table Text Block]

The restricted cash balances as of December 31, 2018 and 2017 were as follows:

	As of December 31,
(in thousands)	2018		2017
Cash held in trust and/or cash held on behalf of others	$	67,163	$	67,541
Collateral on bank credit arrangements and other	9,432		13,833
Total	$	76,595	$	81,374