Commitments and Contingencies (Tables)

9 Months Ended

Sep. 30, 2017

Commitments And Contingencies Disclosure [Abstract]

Summary of Financial instruments with Off-Balance Sheet Credit Risk

Commitments may expire without being used. Off-balance sheet risk to credit loss exists up to the face amount of these instruments, although material losses are not anticipated. The same credit policies are used to make such commitments as are used for loans, including obtaining collateral at exercise of the commitment.

	September 30,		December 31,
	2017		2016
Commitments to extend credit, excluding interest rate lock commitments	$	951,679	$	579,879
Letters of credit		26,774		22,547
Balance at end of period	$	978,453	$	602,426

Summary of Allowance for Loan Repurchases or Indemnifications

The following table summarizes the activity in the repurchase reserve:

	For the three months ended					For the nine months ended
	September 30,					September 30,
	2017			2016		2017			2016
Balance at beginning of period	$	3,037		$	2,859	$	2,659		$	2,156
Provision for loan repurchases or indemnifications		410			470		794			1,173
Recoveries on previous losses		—			—		—			—
Losses on loans repurchased or indemnified		(27	)		13		(33	)		13
Balance at end of period	$	3,420		$	3,342	$	3,420		$	3,342