Leasing Arrangements - Supplemental Balance Sheet Information (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Right-of-use assets, net:
Operating leases, gross	$ 24,564
Accumulated reduction	(2,119)
Operating leases, net	22,445
Finance leases (included in “Other non-current assets”), gross	72
Accumulated depreciation	(21)
Finance leases (included in “Other non-current assets”), net	51
Total Right-of-use assets, net	22,496
Lease liabilities:
Current portion of Operating lease liability	2,290	$ 0
Total Operating lease liability	22,021
Total Operating lease liability	24,311
Current portion of Finance lease (included in “Accrued expenses and other liabilities”) liability	20
Long-term Finance lease (included in “Pension obligations and other liabilities”) liability	34
Total Finance lease liability	54
Total Lease liabilities	$ 24,365