Segment Reporting (Schedule Of Information Relating To Segments) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Segment Reporting Information [Line Items]
Total net sales	$ 287,192	$ 251,014	$ 539,778	$ 474,566
Operating profit	25,708	18,968	39,296	36,341
Travel Trailer And Fifth-Wheels [Member]
Segment Reporting Information [Line Items]
Total net sales	209,013	183,013	394,512	350,348
Motorhomes [Member]
Segment Reporting Information [Line Items]
Total net sales	11,025	8,930	21,275	15,502
RV Aftermarket [Member]
Segment Reporting Information [Line Items]
Total net sales	7,152	5,369	12,881	9,359
RV Adjacent Industries [Member]
Segment Reporting Information [Line Items]
Total net sales	25,876	21,119	48,401	38,777
RV Segment [Member]
Segment Reporting Information [Line Items]
Total net sales	253,066	218,431	477,069	413,986
Operating profit	22,600	14,819	34,864	29,349
Manufactured Housing Original Equipment Manufacturers [Member]
Segment Reporting Information [Line Items]
Total net sales	22,591	21,778	40,370	40,490
Manufactured Housing Aftermarket [Member]
Segment Reporting Information [Line Items]
Total net sales	3,587	3,576	7,239	7,188
Manufactured Housing Adjacent Industries [Member]
Segment Reporting Information [Line Items]
Total net sales	7,948	7,229	15,100	12,902
MH Segment [Member]
Segment Reporting Information [Line Items]
Total net sales	34,126	32,583	62,709	60,580
Operating profit	3,841	4,149	6,308	6,992
Total Segment Operating Profit [Member]
Segment Reporting Information [Line Items]
Operating profit	26,441	18,968	41,172	36,341
Executive Succession [Member]
Segment Reporting Information [Line Items]
Operating profit	$ (733)		$ (1,876)