Goodwill and Other Intangible Assets - Other Intangible Assets (Details) $ in Thousands	Mar. 31, 2019 USD ($)
Other intangible assets:
Estimated Fair Value	$ 60,900
Accumulated Amortization	2,871
Net Carrying Amount	58,029
Customer relationships
Other intangible assets:
Estimated Fair Value	42,000
Accumulated Amortization	955
Net Carrying Amount	41,045
Other
Other intangible assets:
Estimated Fair Value	18,900
Accumulated Amortization	1,916
Net Carrying Amount	$ 16,984