Segment Reporting (Schedule Of Information Relating To Segments) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Segment Reporting Information [Line Items]
Total net sales	$ 250,851	$ 226,323	$ 790,629	$ 700,889
Operating profit	22,830	14,948	62,126	51,289
Travel Trailer And Fifth-Wheels [Member]
Segment Reporting Information [Line Items]
Total net sales	175,892	161,959	570,404	512,307
Motorhomes [Member]
Segment Reporting Information [Line Items]
Total net sales	11,234	8,998	32,509	24,500
RV Aftermarket [Member]
Segment Reporting Information [Line Items]
Total net sales	6,904	5,355	19,785	14,714
RV Adjacent Industries [Member]
Segment Reporting Information [Line Items]
Total net sales	23,933	18,645	72,334	57,422
RV Segment [Member]
Segment Reporting Information [Line Items]
Total net sales	217,963	194,957	695,032	608,943
Operating profit	19,234	11,587	54,098	40,936
Manufactured Housing OEMs [Member]
Segment Reporting Information [Line Items]
Total net sales	22,571	21,188	62,941	61,678
Manufactured Housing Aftermarket [Member]
Segment Reporting Information [Line Items]
Total net sales	3,138	3,134	10,377	10,322
Manufactured Housing Adjacent Industries [Member]
Segment Reporting Information [Line Items]
Total net sales	7,179	7,044	22,279	19,946
MH Segment [Member]
Segment Reporting Information [Line Items]
Total net sales	32,888	31,366	95,597	91,946
Operating profit	3,596	3,361	9,904	10,353
Total Segment Operating Profit [Member]
Segment Reporting Information [Line Items]
Operating profit	22,830	14,948	64,002	51,289
Executive Succession [Member]
Segment Reporting Information [Line Items]
Operating profit			$ (1,876)