Changes in the allowance for loan losses for the three- and nine-month periods ended September 30, 2018, and September 30, 2017, were as follows, in thousands:



	Commercial			Commercial Real Estate			Agricultural and Agricultural Real Estate			Residential Real Estate			Consumer			Total
Balance at June 30, 2018	$	20,709		$	23,727		$	5,709		$	1,857		$	9,322		$	61,324
Charge-offs	(2,945		)	(199		)	(1,145		)	—			(1,831		)	(6,120		)
Recoveries	158			242			—			1			378			779
Provision	4,147			(80		)	2			(8		)	1,177			5,238
Balance at September 30, 2018	$	22,069		$	23,690		$	4,566		$	1,850		$	9,046		$	61,221

	Commercial			Commercial Real Estate			Agricultural and Agricultural Real Estate			Residential Real Estate			Consumer			Total
Balance at December 31, 2017	$	18,098		$	21,950		$	4,258		$	2,224		$	9,156		$	55,686
Charge-offs	(4,717		)	(761		)	(1,357		)	(211		)	(4,462		)	(11,508		)
Recoveries	562			1,013			14			77			1,045			2,711
Provision	8,126			1,488			1,651			(240		)	3,307			14,332
Balance at September 30, 2018	$	22,069		$	23,690		$	4,566		$	1,850		$	9,046		$	61,221



	Commercial			Commercial Real Estate			Agricultural and Agricultural Real Estate			Residential Real Estate			Consumer			Total
Balance at June 30, 2017	$	17,168		$	21,861		$	3,832		$	2,263		$	8,927		$	54,051
Charge-offs	(1,954		)	(1,913		)	—			(142		)	(1,750		)	(5,759		)
Recoveries	347			46			14			63			418			888
Provision	1,409			546			2,281			82			1,387			5,705
Balance at September 30, 2017	$	16,970		$	20,540		$	6,127		$	2,266		$	8,982		$	54,885

	Commercial			Commercial Real Estate			Agricultural and Agricultural Real Estate			Residential Real Estate			Consumer			Total
Balance at December 31, 2016	$	14,765		$	24,319		$	4,210		$	2,263		$	8,767		$	54,324
Charge-offs	(3,310		)	(2,522		)	(888		)	(541		)	(4,982		)	(12,243		)
Recoveries	635			860			17			70			987			2,569
Provision	4,880			(2,117		)	2,788			474			4,210			10,235
Balance at September 30, 2017	$	16,970		$	20,540		$	6,127		$	2,266		$	8,982		$	54,885