Schedule II - Valuation and Qualifying Accounts

12 Months Ended

Dec. 31, 2017

Valuation and Qualifying Accounts [Abstract]

Schedule II - Valuation and Qualifying Accounts

SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS

Years Ended December 31, 2017, 2016 and 2015

(Dollar amounts in thousands)			Additions
	Balance at Beginning of Year		Charged to Income		Charged to Equity			Acquisition of business			Deductions			Balance at  End of Year
Year Ended December 31, 2017
Allowance for doubtful accounts	$	7,290	$	1,799	$	—		$	—		$	1,519	(a)	$	7,570
Tax valuation allowance	$	20,228	$	20,536	$	(2,828	)	$	(1,057	)	$	6,777	(b)	$	30,102
Year Ended December 31, 2016
Allowance for doubtful accounts	$	7,533	$	1,693	$	—		$	3		$	1,939	(a)	$	7,290
Tax valuation allowance	$	15,103	$	291	$	—		$	7,484		$	2,650	(b)	$	20,228
Year Ended December 31, 2015
Allowance for doubtful accounts	$	8,792	$	1,178	$	—		$	—		$	2,437	(a)	$	7,533
Tax valuation allowance	$	33,303	$	680	$	—		$	—		$	18,880	(b)	$	15,103

(a) Accounts written off during the year, net of recoveries of accounts previously written off.

(b) Net decrease in tax valuation allowance is primarily a result of net changes in cumulative book/tax timing differences and changes in judgment about the realizability of deferred tax assets.