Summary of Significant Accounting Policies (Tables)

3 Months Ended

Mar. 31, 2021

Organization Consolidation And Presentation Of Financial Statements [Abstract]

The balances in the Company's Accumulated Other Comprehensive Income (Loss)

Changes in accumulated other comprehensive income (loss) are as follows:

	Foreign Currency			Defined Benefit Pension Plans			Total
Balance at January 1, 2021	$	(13,974	)	$	(1,799	)	$	(15,773	)
Other comprehensive income (loss) before reclassifications		411			—			411
Net current-period other comprehensive income (loss)		411			—			411
Balance at March 31, 2021	$	(13,563	)	$	(1,799	)	$	(15,362	)

	Foreign Currency			Defined Benefit Pension Plans			Total
Balance at January 1, 2020	$	(14,602	)	$	(1,747	)	$	(16,349	)
Other comprehensive income (loss) before reclassifications		(2,755	)		—			(2,755	)
Net current-period other comprehensive income (loss)		(2,755	)		—			(2,755	)
Balance at March 31, 2020	$	(17,357	)	$	(1,747	)	$	(19,104	)

Summary of Changes in Allowance for Credit Losses

The changes in the allowance for credit losses for the quarter ended March 31, 2021 and 2020 were as follows:

	2021			2020
Balance at January 1	$	2,335		$	1,356
Provision for expected credit loss, net of recoveries		58			148
Write-offs and other		(132	)		(231	)
Balance at March 31	$	2,261		$	1,273