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Investment in Qualified Affordable Housing (Tables) | 12 Months Ended
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Dec. 31, 2016
Schedule of Equity Method Investments [Line Items] |
Equity Method Investments [Table Text Block] | The table below details the balances of Park’s affordable housing tax credit investments and related unfunded commitments as of December 31, 2016 and 2015.
(In thousands) |  | December 31, 2016 | December 31, 2015
Affordable housing tax credit investments |  | $ | 52,947 |  | $ | 51,247 |
Unfunded commitments |  | 14,282 |  | 20,311 |

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