Core Deposit and Other Intangibles - Schedule of Core Deposit and Other Intangibles (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
Gross carrying amount	$ 61,798	$ 58,360
Core deposit intangible and other intangibles acquired		4,181
Measurement period adjustment	2,142
Accumulated amortization	(49,074)	(45,164)
Core deposit intangible and other intangibles reduction		(742)
Core Deposit and Other Intangibles	$ 14,866	$ 16,635