Note 9 - Product Warranty Obligations (Tables)

12 Months Ended

Dec. 31, 2016

Notes Tables

Schedule of Product Warranty Liability [Table Text Block]

	Year Ended December 31,
	2016			2015			2014
Balance at beginning of period	$	30,197		$	30,909		$	33,734
Product warranty reserve assumed in acquisition		840			351			360
Payments		(18,691	)		(21,686	)		(20,975	)
Provision for warranty issued		19,148			20,823			22,890
Changes in estimates for pre-existing warranties		201			(200	)		(5,100	)
Balance at end of period	$	31,695		$	30,197		$	30,909

	Year Ended December 31,
	2016			2015			2014
Balance at beginning of period	$	28,961		$	27,193		$	23,092
Deferred revenue contracts assumed in acquisition		-			291			-
Deferred revenue contracts issued		7,733			5,978			7,343
Amortization of deferred revenue contracts		(5,614	)		(4,501	)		(3,242	)
Balance at end of period	$	31,080		$	28,961		$	27,193

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

	December 31,
	2016		2015
Product warranty liability
Current portion - other accrued liabilities	$	20,763	$	21,726
Long-term portion - other long-term liabilities		10,932		8,471
Total	$	31,695	$	30,197
Deferred revenue related to extended warranties
Current portion - other accrued liabilities	$	6,728	$	6,026
Long-term portion - other long-term liabilities		24,352		22,935
Total	$	31,080	$	28,961