Basis of Presentation (Other Liabilities) (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019	Mar. 31, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]
SPC dividends payable	$ 55,669	$ 55,763
Unpaid shareholder dividends	16,691	16,676	$ 16,660
All other	97,423	100,817
Total other liabilities	$ 169,783	$ 173,256

Carrying value as of the balance sheet date of dividends declared but unpaid on equity securities issued by the entity and outstanding.

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