Basis of presentation (Tables)

3 Months Ended

Mar. 31, 2020

Accounting Policies [Abstract]

Summary of Basic and Diluted Earnings Per Common Share

The following is a summary of the basic and diluted earnings per common share calculation for each of the periods presented:

	Three Months Ended March 31,
	2020			2019
Basic earnings per common share calculation:
Net income	$	745		$	19,588
Dividends paid on and undistributed earnings allocated to participating securities	—			(105		)
Earnings attributable to common shareholders	$	745		$	19,483
Weighted-average basic shares outstanding	31,257,739			30,786,684
Basic earnings per common share	$	0.02		$	0.63
Diluted earnings per common share:
Earnings attributable to common shareholders	$	745		$	19,483
Weighted-average basic shares outstanding	31,257,739			30,786,684
Weighted-average diluted shares contingently issuable	476,373		(1)	562,514
Weighted-average diluted shares outstanding	31,734,112			31,349,198
Diluted earnings per common share	$	0.02		$	0.62

Schedule of New Accounting Pronouncements and Changes in Accounting Principles

A summary of the impact to the consolidated balance sheet as of the adoption date is presented in the table below:

	Balance before adoption of ASC 326			Cumulative effective adjustment to adopt ASC 326			Impact of the adjustment to adopt ASC 326	Balance at January 1, 2020 (post ASC 326 adoption)
ASSETS:
Loans	$	4,409,642		$	558		Increase	$	4,410,200
Allowance for credit losses	(31,139		)	(31,446		)	Increase	(62,585		)
Total impact to assets				$	(30,888	)	Net decrease
LIABILITIES AND EQUITY:
Allowance for credit losses on unfunded commitments	$	—		$	2,947		Increase	$	2,947
Net deferred tax liability	20,490			(8,817		)	Decrease	11,673
Retained earnings	293,524			(25,018		)	Decrease	268,506
Total impact to liabilities and equity				$	(30,888	)	Net decrease