Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2019

Fair Value Disclosures [Abstract]

Tables of Financial Instruments Measured At Fair Value on Recurring Basis

	March 31, 2019
	Level 1		Level 2		Level 3		Total
Assets:
Investment securities available-for-sale:
Mortgage-backed securities:
Residential mortgage pass-through securities issued or guaranteed by U.S. Government agencies or sponsored enterprises	$	—	$	134,488	$	—	$	134,488
Other residential MBS issued or guaranteed by U.S. Government agencies or sponsored enterprises		—		613,970		—		613,970
Municipal securities		—		441		—		441
Loans held for sale		—		59,324		—		59,324
Interest rate swap derivatives		—		14,035		—		14,035
Mortgage banking derivatives		—		—		1,552		1,552
Total assets at fair value	$	—	$	822,258	$	1,552	$	823,810
Liabilities:
Interest rate swap derivatives	$	—	$	7,772	$	—	$	7,772
Mortgage banking derivatives		—		—		811		811
Total liabilities at fair value	$	—	$	7,772	$	811	$	8,583

	December 31, 2018
	Level 1		Level 2		Level 3		Total
Assets:
Investment securities available-for-sale:
Mortgage-backed securities:
Residential mortgage pass-through securities issued or guaranteed by U.S. Government agencies or sponsored enterprises	$	—	$	146,642	$	—	$	146,642
Other residential MBS issued or guaranteed by U.S. Government agencies or sponsored enterprises		—		643,381		—		643,381
Municipal securities		—		441		—		441
Loans held for sale		—		48,120		—		48,120
Interest rate swap derivatives		—		20,627		—		20,627
Mortgage banking derivatives		—		—		871		871
Total assets at fair value	$	—	$	859,211	$	871	$	860,082
Liabilities:
Interest rate swap derivatives	$	—	$	3,577	$	—	$	3,577
Mortgage banking derivatives		—		—		544		544
Total liabilities at fair value	$	—	$	3,577	$	544	$	4,121

Table of Changes in Level 3 Financial Instruments

		Mortgage banking
		derivatives, net
Balance at December 31, 2018	$	327
Gain included in earnings, net		414
Balance at March 31, 2019	$	741

Table of assets recorded at fair value on a non-recurring basis

	March 31, 2019
	Total		Losses from fair value changes
Impaired loans	$	32,743	$	245
Other real estate owned		9,394		596
Mortgage servicing rights		3,362		54
Total	$	45,499	$	895

	March 31, 2018
	Total		Losses from fair value changes
Impaired loans	$	34,672	$	715
Other real estate owned		11,875		38
Mortgage servicing rights		4,130		—
Total	$	50,677	$	753