Operating Leases (Future Minimum Annual Rentals) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014
Property Subject to or Available for Operating Lease [Line Items]
2015	$ 116,324
2016	81,419
2017	47,039
2018	23,113
2019	8,569
2020 and thereafter	1,922
Total	278,386
Leased Facilities and Equipment [Member]
Property Subject to or Available for Operating Lease [Line Items]
2015	92,333
2016	66,083
2017	40,357
2018	21,936
2019	8,569
2020 and thereafter	1,922
Total	231,200
Leased Vehicles [Member]
Property Subject to or Available for Operating Lease [Line Items]
2015	23,991
2016	15,336
2017	6,682
2018	1,177
2019	0
2020 and thereafter	0
Total	$ 47,186

Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 840

-SubTopic 20

-Section 50

-Paragraph 2

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=6453985&loc=d3e41502-112717

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 840

-SubTopic 10

-Section 55

-Paragraph 40

-Subparagraph (Note 3)

-URI http://asc.fasb.org/extlink&oid=6584154&loc=d3e38371-112697

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Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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