MORTGAGE SERVICING RIGHTS (Tables)

3 Months Ended

Mar. 31, 2018

Transfers and Servicing [Abstract]

Presentation of Activity Related to MSR

The following table presents activity related to MSRs for the three months ended March 31, 2018 and 2017:

	Three Months Ended
	March 31, 2018			March 31, 2017
	(dollars in thousands)
Fair value, beginning of period	$	580,860		$	652,216
Purchases	—			213
Change in fair value due to:
Changes in valuation inputs or assumptions (1)	36,674			(6,233		)
Other changes, including realization of expected cash flows	(21,156		)	(14,030		)
Fair value, end of period	$	596,378		$	632,166

⁽¹⁾ Principally represents changes in discount rates and prepayment speed inputs used in valuation model, primarily due to changes in interest rates.