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Fair Value Measurements - Assets Measured at Fair Value on a Nonrecurring Basis (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Impaired loans measured at fair value on a nonrecurring basis
Impaired loans	$ 8,107	$ 4,101
OREO	7,942	6,741
Mortgage servicing rights		26,302
Total	16,049	37,144
Level 1
Impaired loans measured at fair value on a nonrecurring basis
Impaired loans	0	0
OREO	0	0
Mortgage servicing rights		0
Total	0	0
Level 2
Impaired loans measured at fair value on a nonrecurring basis
Impaired loans	0	0
OREO	0	0
Mortgage servicing rights		0
Total	0	0
Level 3
Impaired loans measured at fair value on a nonrecurring basis
Impaired loans	8,107	4,101
OREO	7,942	6,741
Mortgage servicing rights		26,302
Total	$ 16,049	$ 37,144

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- Definition

Fair value measurement on impaired loans on non recurring basis.

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- Definition

Impaired loans measured at fair value on nonrecurring basis.

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Mortgage Servicing Rights, Fair Value Disclosure

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- Definition

Other real estate owned measured at fair value on non recurring basis.

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- Definition

This element represents the aggregate of the assets reported on the balance sheet at period end measured at fair value on a nonrecurring basis by the entity. This element is intended to be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements.

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