Fair Value of Financial Instruments - (Tables)

12 Months Ended

Dec. 31, 2016

Fair Value Disclosures [Abstract]

Fair Value of Financial Instruments

The fair value of financial instruments at December 31, 2016 and 2015, including methods and assumptions utilized for determining fair value of financial instruments, are set forth below:

	Level in fair value	December 31, 2016				December 31, 2015
	measurement	Carrying		Estimated		Carrying		Estimated
	hierarchy	amount		fair value		amount		fair value
ASSETS
Cash and cash equivalents	Level 1	$	152,736	$	152,736	$	166,092	$	166,092
Mortgage-backed securities—residential mortgage pass-through securities issued or guaranteed by U.S. Government agencies or sponsored enterprises available-for-sale	Level 2		227,160		227,160		310,978		310,978
Mortgage-backed securities—other residential mortgage-backed securities issued or guaranteed by U.S. Government agencies or sponsored enterprises available-for-sale	Level 2		652,739		652,739		845,543		845,543
Municipal securities	Level 2		3,648		3,648		—		—
Municipal securities	Level 3		265		265		306		306
Other available-for-sale securities	Level 3		419		419		419		419
Mortgage-backed securities—residential mortgage pass-through securities issued or guaranteed by U.S. Government agencies or sponsored enterprises held-to-maturity	Level 2		263,411		264,862		340,131		342,812
Mortgage-backed securities—other residential mortgage-backed securities issued or guaranteed by U.S. Government agencies or sponsored enterprises held-to-maturity	Level 2		69,094		67,711		87,372		85,773
Non-marketable securities	Level 2		14,949		14,949		22,529		22,529
Loans receivable	Level 3		2,860,921		2,879,860		2,587,673		2,613,381
Loans held-for-sale	Level 2		24,187		24,187		13,292		13,292
Accrued interest receivable	Level 2		12,562		12,562		12,190		12,190
Interest rate swap derivatives	Level 2		11,428		11,428		2,347		2,347
Mortgage banking derivatives	Level 3		287		287		—		—
LIABILITIES
Deposit transaction accounts	Level 2		2,696,603		2,696,603		2,646,794		2,646,794
Time deposits	Level 2		1,172,046		1,172,046		1,193,883		1,193,883
Securities sold under agreements to repurchase	Level 2		92,011		92,011		136,523		136,523
Federal Home Loan Bank advances	Level 2		38,665		39,324		40,000		40,919
Accrued interest payable	Level 2		4,973		4,973		4,319		4,319
Interest rate swap derivatives	Level 2		3,279		3,279		8,315		8,315
Mortgage banking derivatives	Level 3		187		187		—		—