Mortgage Servicing Rights, Net (Tables)

6 Months Ended

Jun. 30, 2018

Transfers And Servicing [Abstract]

Summary of Changes In Carrying Amount of Mortgage Servicing Rights

The changes in the carrying amount of mortgage servicing rights for the three and six months ended June 30, 2018 and 2017 were as follows (in thousands):

	Three Months Ended June 30,						Six Months Ended June 30,
	2018			2017			2018			2017
Mortgage Servicing Rights
Beginning balance	$	386,953		$	359,189		$	399,349		$	347,558
Additions		25,342			40,459			31,731			69,265
Purchases		1,099			577			1,608			577
Amortization		(20,011	)		(18,317	)		(39,305	)		(35,492	)
Ending balance	$	393,383		$	381,908		$	393,383		$	381,908
Valuation Allowance
Beginning balance	$	(5,427	)	$	(4,574	)	$	(6,723	)	$	(7,742	)
Decrease (increase)		4,084			(907	)		5,380			2,261
Ending balance		(1,343	)		(5,481	)		(1,343	)		(5,481	)
Net balance	$	392,040		$	376,427		$	392,040		$	376,427

Schedule of Contractually Specified Servicing Fees and Ancillary Fees Earned

The amount of contractually specified servicing fees (including primary and special servicing fees) and ancillary fees (including yield maintenance fees) earned by the Company were as follows:

	Three Months Ended June 30,				Six Months Ended June 30,
	2018		2017			2018		2017
Servicing fees	$	26,092	$	23,734		$	51,224	$	45,784
Escrow interest and placement fees		3,867		2,021			6,834		3,480
Ancillary fees		2,374		1,085			3,201		2,408
Total Servicing fees	$	32,333	$	26,840		$	61,259	$	51,672