7. Other Assets

Goodwill

Goodwill originated from the acquisition of BancWest by BNPP in December 2001. Goodwill generated in that acquisition was recorded on the Company’s consolidated balance sheets as a result of push‑down accounting treatment.

The carrying amount of goodwill reported in two of the Company’s reporting segments as of December 31, 2017 and 2016 were as shown below. The Treasury and Other segment is not assigned goodwill.


	Retail		Commercial
(in thousands)	Banking		Banking		Total
December 31, 2017	$	687,492	$	308,000	$	995,492
December 31, 2016		687,492		308,000		995,492

There was no impairment of the Company’s goodwill for the years ended December 31, 2017, 2016 and 2015.

Mortgage Servicing Rights (“MSRs”)

Mortgage servicing activities include collecting principal, interest, tax, and insurance payments from borrowers while accounting for and remitting payments to investors, taxing authorities, and insurance companies. The Company also monitors delinquencies and administers foreclosure proceedings.

Mortgage loan servicing income is recorded in noninterest income as a part of other service charges and fees and amortization of the servicing assets is recorded in noninterest income as part of other income. The unpaid principal amount of consumer loans serviced for others was $2.3 billion and $2.7 billion as of December 31, 2017 and 2016, respectively. Servicing fees include contractually specified fees, late charges, and ancillary fees, and were $6.5 million, $7.7 million and $8.7 million for the years ended December 31, 2017, 2016 and 2015, respectively.

Amortization of MSRs was $3.6 million, $4.7 million and $5.5 million for the years ended December 31, 2017, 2016 and 2015, respectively. The estimated future amortization expense for MSRs over the next five years is as follows:


	Estimated
(dollars in thousands)	Amortization
Year ending December 31:
2018	$	1,959
2019		1,702
2020		1,486
2021		1,297
2022		1,133

The details of the Company’s MSRs are presented below:


	December 31,
(dollars in thousands)	2017		2016
Gross carrying amount	$	56,571	$	56,544
Less: accumulated amortization		43,375		39,735
Net carrying value	$	13,196	$	16,809

The following table presents changes in amortized MSRs for the periods indicated:


	Year Ended December 31,
(dollars in thousands)	2017		2016
Balance at beginning of year	$	16,809	$	21,435
Originations		27		65
Amortization		(3,640)		(4,691)
Balance at end of year	$	13,196	$	16,809
Fair value of amortized MSRs at beginning of year	$	25,160	$	29,676
Fair value of amortized MSRs at end of year	$	21,697	$	25,160
Balance of loans serviced for others	$	2,342,619	$	2,702,489

MSRs are evaluated for impairment if events and circumstances indicate a possible impairment. No impairment of MSRs was recorded for the years ended December 31, 2017, 2016 and 2015.

The quantitative assumptions used in determining the lower of cost or fair value of the Company’s MSRs were as follows:


	2017							2016
						Weighted							Weighted
	Range					Average		Range					Average
Conditional prepayment rate	8.53	%	-	19.63	%	9.04	%	8.61	%	-	18.01	%	9.16	%
Life in years (of the MSR)	3.29		-	7.15		6.76		3.75		-	7.26		6.19
Weighted-average coupon rate	3.97	%	-	6.79	%	4.04	%	3.99	%	-	6.87	%	4.06	%
Discount rate	10.50	%	-	10.52	%	10.50	%	10.46	%	-	10.52	%	10.50	%

The sensitivities surrounding MSRs are expected to have an immaterial impact on fair value.

Other

The Company had $52.3 million and $12.9 million in affordable housing and other tax credit investment partnership interest as of December 31, 2017 and 2016, respectively, included in other assets on the consolidated balance sheets. The amount of amortization of such investments reported in the provision for income taxes was $3.5 million, $3.5 million and $3.3 million during the years ended December 31, 2017, 2016 and 2015, respectively. The affordable housing tax credits and other benefits recognized during the years ended December 31, 2017, 2016 and 2015 were $4.5 million, $4.8 million and $4.7 million, respectively.

Nonmarketable equity securities include FHLB stock, which the Company holds to meet regulatory requirements. As a member of the FHLB system, the Company is required to maintain a minimum level of investment in FHLB non‑publicly traded stock based on specific percentages of the Company’s total assets and outstanding advances in accordance with the FHLB’s capital plan which may be amended or revised periodically. Amounts in excess of the required minimum may be transferred at par to another member institution subject to prior approval of the FHLB. Excess stock may also be sold to the FHLB subject to a 5‑year redemption notice period and at the sole discretion of the FHLB. These securities are accounted for under the cost method. These investments are considered long‑term investments by management and accordingly, the ultimate recoverability of its par value is considered rather than considering temporary declines in value. The investment in FHLB stock at both December 31, 2017 and 2016 was $10.1 million and was included in other assets on the consolidated balance sheets.