Accrued Liabilities (Tables)

12 Months Ended

Dec. 31, 2017

Accrued Liabilities [Abstract]

Accrued Liabilities

Accrued liabilities at December 31 were as follows (in thousands): 

	2017		2016
Interest	$	20,060	$	21,742
Customer deposits	29,236		16,707
Commissions	8,341		9,144
Warranty	10,587		10,548
Accrued dividend	42,921		36,077
Rebates	29,996		19,414
Billings in excess of cost	23,284		12,381
Other	102,149		93,326
	$	266,574	$	219,339