XML 35 R17.htm IDEA: XBRL DOCUMENT

Valuation and Qualifying Accounts

12 Months Ended

Dec. 31, 2020

SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]

SEC Schedule, 12-09, Schedule of Valuation and Qualifying Accounts Disclosure [Text Block]

VALUATION AND QUALIFYING ACCOUNTS

For the year ended December 31, 2020, 2019 and 2018


(in thousands)			Balance at Beginning of Year												Charges to Revenue						Charges (Benefits) to Expense						Charges to Other Accounts - Equity						Deductions/Write-offs						Balance at End of Year
Allowance for doubtful accounts receivable:
Year ended December 31, 2020			$	830											$	—					$	(24)					$	—					$	(314)					$	492
Year ended December 31, 2019			500												—						616						—						(286)						830
Year ended December 31, 2018			750												—						199						—						(449)						500




Valuation allowance for deferred tax assets:
Year ended December 31, 2020			$	277,693											$	—					$	16,762					$	(7,179)					$	—					$	287,276
Year ended December 31, 2019			271,374												—						4,717						1,602						—						277,693
Year ended December 31, 2018			226,458												—						42,772						2,144						—						271,374