Discontinued Operations - Cash Flows from Discontinued Operations (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash dividends paid to parent company by consolidated subsidiaries	$ 29,400
Dividends paid	5,740	$ 0
OMHHF
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash provided by operating activities	(4,143)	8,005
Cash provided by investing activities	47,562	0
Cash used in financing activities (1)	(35,358)	(187)
Net increase in cash and cash equivalents	$ 8,061	$ 7,818