Commitments and Contingencies (Details) $ in Thousands		12 Months Ended
	Dec. 05, 2001 USD ($) subsidiary property item	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)	Dec. 31, 2006 USD ($)	Feb. 28, 2014 property	Dec. 31, 2012 property	Dec. 28, 2012 property	Jan. 09, 2012 property	Dec. 29, 2011 property
Future minimum annual fixed rentals under operating leases
2017		$ 72,410
2018		71,675
2019		70,145
2020		66,223
2021		64,044
Thereafter		493,477
Total		837,974
Rent expense		74,500	$ 61,500	$ 59,500
Letters of credit		10,800	10,400
Cost of real property purchased		$ 273,541	288,274
Initial term of lease		20 years
Number of renewal options | item	2
Renewal term of lease	5 years
Net book value of Land and buildings removed from balance sheet	$ 45,800
Annual net average lease payments	$ 3,400
Derecognition resulted in deferred gain		$ 100	4,600
FreedomRoads, LLC Floor Plan Facility
Future minimum annual fixed rentals under operating leases
Letters of credit		7,600	6,800
Property sold in 2016
Future minimum annual fixed rentals under operating leases
Cost of real property purchased		13,200
Payments to Acquire Real Estate		11,900	1,200	100
Original purchase price		$ 11,900	1,200	100
Property sold in 2015
Future minimum annual fixed rentals under operating leases
Cost of real property purchased			19,000
Payments to Acquire Real Estate			18,100	900
Original purchase price			18,100	900
Property sold in 2014
Future minimum annual fixed rentals under operating leases
Cost of real property purchased				1,200
Payments to Acquire Real Estate				300	$ 900
Original purchase price				300	$ 900
Minimum
Future minimum annual fixed rentals under operating leases
Initial term of lease	25 years
Maximum
Future minimum annual fixed rentals under operating leases
Initial term of lease	27 years
Other agreements
Period for severance pay beyond termination date		1 year
Sponsorship agreements arranged in 2016
Other agreements
2016		$ 1,000
2017		1,200
2018		2,500
2019		2,600
2020		1,300
2021		1,400
Thereafter		4,500
Sponsorship agreement arranged in 2014
Other agreements
2014		3,500
2015		3,300
2016		3,400
2017		3,500
2018		3,600
2019		3,700
2020		3,800
2021		3,900
2022		4,000
Broad market sponsorship agreement
Other agreements
2015		700
2016		900
2017		1,000
2018		1,000
Total		3,600
Subscription agreement
Other agreements
2014		1,700
2015		1,600
2016		1,800
2017		2,100
2018		2,200
Total		9,400
Amended Subscription Agreement
Future minimum annual fixed rentals under operating leases
2018		2,400
2019		2,400
Other agreements
2017		2,300
2020		2,400
2021		2,600
Third Party
Future minimum annual fixed rentals under operating leases
2017		71,260
2018		70,525
2019		68,995
2020		65,073
2021		62,894
Thereafter		482,284
Total		821,031
Related Party
Future minimum annual fixed rentals under operating leases
2017		1,150
2018		1,150
2019		1,150
2020		1,150
2021		1,150
Thereafter		11,193
Total		16,943
Subsidiary of FreedomRoads
Future minimum annual fixed rentals under operating leases
Sale Leaseback Transaction, Deferred Gain, Gross		100	400	0
Initial term of lease						20 years
Derecognition resulted in deferred gain						$ 6,400
Income recognition (offset to rent expense) of the deferred credits		300	$ 300	$ 300
Subsidiary of FreedomRoads | FreedomRoads, LLC Floor Plan Facility
Future minimum annual fixed rentals under operating leases
Letters of credit		400
AGRP Holding Corp
Future minimum annual fixed rentals under operating leases
Number of real estate properties sold | property							2	2	1	1	6
Number of real estate properties owned | property											11
Number of separate wholly owned subsidiaries of related party | subsidiary	11
Derecognition resulted in deferred gain		$ 5,100
GSE
Future minimum annual fixed rentals under operating leases
Number of real estate properties sold | property	11
Consideration received	$ 52,300
Gain from sale of land and building	6,100
Gain on certain properties	12,100
Loss on other properties	$ 6,000