Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2019

Accounting Policies [Abstract]

Reconciliation of Allowance for Sales Returns

The following table provides a reconciliation of the activity related to the Company’s sales return reserve (in thousands):

	Years Ended December 31,
	2019			2018			2017
	(in thousands)
Beginning balance	$	24,522		$	15,470		$	9,341
Provision for credit losses	95,094			52,088			37,521
Write-off of uncollectible amounts, net of recoveries	(90,573		)	(43,036		)	(31,392		)
Ending balance	$	29,043		$	24,522		$	15,470

Reconciliation of Reserve for Warranty Expense

The following table provides a reconciliation of the activity related to the Company’s accrued warranty expense:

	Years Ended December 31,
	2019			2018			2017
	(In thousands)
Beginning balance	$	7,610		$	6,657		$	5,395
Provision	8,311			9,437			9,434
Provision liability assumed from acquisition	2,208			—			—
Claims paid/costs incurred	(8,493		)	(8,484		)	(8,172		)
Ending balance	$	9,636		$	7,610		$	6,657

Reconciliation of Allowance for Doubtful Accounts

The following table provides a reconciliation of the activity related to the Company’s allowance for estimated credit losses.

	Years Ended December 31,
	2019			2018			2017
	(In thousands)
Beginning balance	$	5,610		$	4,447		$	5,728
Provision for credit losses	1,107			2,257			2,335
Write-off of uncollectible amounts, net of recoveries	(725		)	(1,094		)	(3,616		)
Ending balance	$	5,992		$	5,610		$	4,447

Estimated Useful Lives

Depreciation is computed using the straight-line method over estimated useful lives generally as follows:

Buildings and improvements	10-30 years
Machinery and equipment	5-10 years
Furniture, computers and equipment	3-5 years
Production molds	2-5 years

Other Income (Expense) Net

Other income (expense), net primarily includes gains and losses on foreign currency forward contracts, cross-currency debt swap contracts and foreign currency transactions. The components of other income (expense), net are as follows:

	Years Ended December 31,
	2019			2018			2017
	(In thousands)
Foreign currency forward contract gain (loss), net	$	6,947		$	10,085		$	(7,688	)
Foreign currency transaction gain (loss), net	(5,838		)	(2,824		)	808
Other	485			518			9
	$	1,594		$	7,779		$	(6,871	)

Schedule of Accumulated Other Comprehensive Income (Loss)

The following table details the amounts reclassified from accumulated other comprehensive income to cost of goods sold, as well as changes in foreign currency translation for the years ended December 31, 2019, 2018 and 2017 (in thousands):

	Derivative Instruments			Foreign Currency Translation			Total
Accumulated other comprehensive loss, December 31, 2016	$	1,570		$	(20,036	)	$	(18,466	)
Change in derivative instruments	(2,679		)	—			(2,679		)
Net losses reclassified to cost of goods sold	187			—			187
Foreign currency translation adjustments	—			14,198			14,198
Income tax expense	594			—			594
Accumulated other comprehensive loss, December 31, 2017, after tax	(328		)	(5,838		)	(6,166		)
Change in derivative instruments	389			—			389
Net gains reclassified to cost of goods sold	(236		)	—			(236		)
Foreign currency translation adjustments	—			(7,969		)	(7,969		)
Income tax expense	282			—			282
Accumulated other comprehensive loss, December 31, 2018, after tax	107			(13,807		)	(13,700		)
Change in derivative instruments	2,811			—			2,811
Net gains reclassified to cost of goods sold	(1,165		)	—			(1,165		)
Net gains reclassified to other income (expense)	(2,756		)	—			(2,756		)
Net gains reclassified to interest expense	(4,475		)	—			(4,475		)
Foreign currency translation adjustments	—			(4,412		)	(4,412		)
Income tax expense	1,275			—			1,275
Accumulated other comprehensive loss, December, 2019, after tax	$	(4,203	)	$	(18,219	)	$	(22,422	)