Leases (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013		Dec. 31, 2012	Dec. 31, 2011
Operating Leased Assets [Line Items]
2014	$ 36,216
2015	24,713
2016	18,837
2017	10,318
2018	6,358
Thereafter	16,144
Total Due	112,586
Rent expense	75,348		74,849	73,801
Real Estate [Member]
Operating Leased Assets [Line Items]
2014	25,160
2015	19,385
2016	15,185
2017	8,416
2018	5,682
Thereafter	16,022
Total Due	89,850
Vehicles and Equipment [Member]
Operating Leased Assets [Line Items]
2014	11,056	[1]
2015	5,328	[1]
2016	3,652	[1]
2017	1,902	[1]
2018	676	[1]
Thereafter	122	[1]
Total Due	$ 22,736	[1]
Minimum [Member] | Automobiles [Member]
Operating Leased Assets [Line Items]
Term Of Operating Lease Cancellable In Twelve Month Period	36
Maximum [Member] | Automobiles [Member]
Operating Leased Assets [Line Items]
Term Of Operating Lease Cancellable In Twelve Month Period	60

[1] The Company leases vehicles with contractual terms of 36 to 60 months that are cancellable after 12 months without penalty. Future minimum lease payments reflect only the minimum payments during the initial 12-month non-cancellable term.