Note 9 - Product Warranty Obligations (Tables)

9 Months Ended

Sep. 30, 2021

Notes Tables

Schedule of Product Warranty Liability [Table Text Block]

	Three Months Ended September 30,						Nine Months Ended September 30,
	2021			2020			2021			2020
Balance at beginning of period	$	74,758		$	50,324		$	59,218		$	49,316
Product warranty reserve assumed in acquisition		1,085			124			1,085			124
Payments		(10,475	)		(8,667	)		(29,536	)		(24,136	)
Provision for warranty issued		16,527			10,949			48,521			27,691
Changes in estimates for pre-existing warranties		1,089			(575	)		3,696			(840	)
Balance at end of period	$	82,984		$	52,155		$	82,984		$	52,155

	Three Months Ended September 30,						Nine Months Ended September 30,
	2021			2020			2021			2020
Balance at beginning of period	$	100,484		$	83,153		$	89,788		$	78,738
Deferred revenue contracts issued		11,105			6,802			31,304			18,966
Amortization of deferred revenue contracts		(5,014	)		(4,241	)		(14,517	)		(11,990	)
Balance at end of period	$	106,575		$	85,714		$	106,575		$	85,714

Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table Text Block]

Remainder of 2021	$	5,140
2022		20,809
2023		21,053
2024		17,432
2025		13,661
After 2025		28,480
Total	$	106,575

Product Warranty Obligations Included In Consolidated Balance Sheet [Table Text Block]

	September 30,		December 31,
	2021		2020
Product warranty liability:
Current portion - other accrued liabilities	$	51,555	$	37,417
Long-term portion - other long-term liabilities		31,429		21,801
Total	$	82,984	$	59,218
Deferred revenue related to extended warranties:
Current portion - other accrued liabilities	$	20,090	$	18,857
Long-term portion - other long-term liabilities		86,485		70,931
Total	$	106,575	$	89,788