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Discontinued Operations - Additional Information (Details) $ in Thousands		3 Months Ended			6 Months Ended
	Jun. 02, 2016 USD ($) loan	Jun. 30, 2016 USD ($)	Jun. 30, 2015 USD ($)	[1]	Jun. 30, 2016 USD ($)	Jun. 30, 2015 USD ($)		Jun. 20, 2016 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Percentage of controlling interest owned by the company in OMHHF		83.68%			83.68%
Discontinued Operation, Gain (Loss) from Disposal of Discontinued Operation, before Income Tax					$ 14,916
Proceeds from sale of assets					43,252	$ 0
Tax effect of discontinued operation		$ 6,036	$ 1,585		5,760	3,160	[1]
Income taxes		$ 2,627	$ (400)		$ 6,439	$ (2,555)	[1]
OMHHF
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Percentage of controlling interest owned by the company in OMHHF		83.68%			83.68%
Non-controlling interest percent		16.32%			16.32%
Number of loans insured by U.S. Department of Housing and Urban Development (in loans) | loan	480
Disposal group, including discontinued operation, consideration								$ 45,000
Disposal group, including discontinued operation, consideration withheld								$ 1,400
Discontinued Operation, Gain (Loss) from Disposal of Discontinued Operation, before Income Tax	$ 14,900
Business Pipeline of Mortgage Loans
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from sale of assets		$ 1,500
[1] Amounts have been recast to reflect discontinued operations. See Note 3 for details.

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