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Financing Receivables - Mortgage Loan Portfolio as Collectively or Individually Evaluated for Impairment (Details) (USD $)
In Thousands, unless otherwise specified |
Jun. 30, 2014
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Dec. 31, 2013
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Dec. 31, 2012
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| Financing Receivable, Allowance for Credit Losses [Line Items] | |||
| Mortgage loans collectively evaluated for impairment | $ 531,807 | $ 582,679 | |
| Mortgage loans individually evaluated for impairment | 43,979 | 49,828 | |
| Mortgage loans, carrying value | 572,831 | 629,256 | |
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Mortgage loans, net
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| Financing Receivable, Allowance for Credit Losses [Line Items] | |||
| Allowance for potential future losses | $ (2,955) | $ (3,251) | $ (3,346) |