Mortgage Servicing Rights (Tables)

9 Months Ended

Sep. 30, 2018

Transfers and Servicing [Abstract]

Summary of Changes in Mortgage Servicing Rights

The following table summarizes the changes in mortgage servicing rights ("MSRs"), which are included in other assets on the consolidated balance sheets:

	Three months ended September 30						Nine months ended September 30
	2018			2017			2018			2017
	(in thousands)
Amortized cost:
Balance at beginning of period	$	37,894		$	38,180		$	37,663		$	38,822
Originations of mortgage servicing rights	2,018			1,333			5,247			3,719
Amortization	(1,684		)	(1,639		)	(4,682		)	(4,667		)
Balance at end of period	$	38,228		$	37,874		$	38,228		$	37,874
Valuation allowance:
Balance at beginning of period	$	—		$	—		$	—		$	(1,291	)
Reductions to valuation allowance	—			—			—			1,291
Balance at end of period	$	—		$	—		$	—		$	—
Net MSRs at end of period	$	38,228		$	37,874		$	38,228		$	37,874