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Fair Value Measurements - Summary of Derivative Notional Amounts and Fair Values (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Derivative [Line Items]
Derivative Liability, Notional Amount	$ 263,153	$ 223,098
Interest Rate Lock Commitments [Member]
Derivative [Line Items]
Derivative Asset, Notional Amount	6,801	11,168
Derivative Asset, Fair Value	113	130
Derivative Liability, Notional Amount	0	1,810
Derivative Liability, Fair Value	0	(3)
Short [Member] | Forward Contracts [Member]
Derivative [Line Items]
Derivative Asset, Notional Amount	626	3,223
Derivative Asset, Fair Value	0	17
Derivative Liability, Notional Amount	6,175	9,755
Derivative Liability, Fair Value	$ (40)	$ (38)

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