Leasing Arrangements - Supplemental Balance Sheet Information (Details) $ in Thousands	Mar. 31, 2019 USD ($)
Right-of-use assets, net:
Operating leases, gross	$ 22,523
Accumulated amortization	550
Operating leases, net	21,973
Finance leases (included in Other non-current assets), gross	75
Accumulated depreciation	5
Finance leases (included in Other non-current assets), net	70
Total Right-of-use assets, net	22,043
Lease liabilities:
Current portion of Operating lease liability	2,238
Long-term Operating lease liability	21,480
Total Operating lease liability	23,718
Current portion of Finance lease (included in Accrued expenses and other liabilities) liability	19
Long-term Finance lease (included in Pension obligations and other liabilities) liability	48
Total Finance lease liability	67
Total Lease liabilities	$ 23,785