Schedule II-Valuation and Qualifying Accounts

12 Months Ended

Dec. 31, 2018

Valuation And Qualifying Accounts [Abstract]

Schedule II-Valuation and Qualifying Accounts

Schedule II—Valuation and Qualifying Accounts

For the Year Ended December 31, 2018

(dollars in thousands)

	Allowance for Doubtful
	Accounts(1)
	2018			2017			2016
Balance at beginning of period	$	1,433		$	475		$	1,149
Additions:
Bad debt expense		1,044			2,895			(277	)
Deductions:
Charge-offs of uncollectible balances		(502	)		(1,937	)		(397	)
Balance at end of period	$	1,975		$	1,433		$	475

(1) Includes the allowance for doubtful accounts for both accounts receivable and other receivables.