Represents the amount of the letters of credit related to contract performance obligations.

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- Definition

Represents the letters of credit outstanding related to the payment obligation under insurance programs.

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No definition available.

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- Definition

Represents the remaining term of the operating lease arrangements of the entity.

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No definition available.

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- Definition

Represents the schedule period of time for cash outlay requirements under an existing purchase commitment.

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No definition available.

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- Definition

Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line.

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No definition available.

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The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

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No definition available.

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No definition available.

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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 next 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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 10
-Section 55
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- Definition

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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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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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 fourth 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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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 third 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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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 second 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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Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due after 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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- Definition

Minimum amount to be expended to satisfy the terms of arrangements in which the entity has agreed to expend funds to procure goods or services, excluding long-term purchase commitments or unconditional purchase obligations.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
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Commitments and Contingencies (Details Textual 1) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Loss Contingencies [Abstract]
Letters of Credit Outstanding, Amount	$ 19.3	$ 19.3
Letters Of Credit Outstanding Amount Related To Payment Obligation Under Insurance Programs	17.5	17.5
Letters Of Credit Outstanding Amount Related To Contract Performance Obligations	1.8	1.8
Future minimum lease payments for operating leases
2016	1.7
2017	1.1
2018	0.9
2019	0.7
2020	0.1
2021	0.1
Operating lease, additional disclosure
Rent expense	$ 57.2	$ 41.1	$ 51.2
Purchase Commitments for Construction Equipment
Significant Purchase Commitment Scheduled Period of Time for Cash Outlay	3 months
Outstanding purchase orders for certain construction equipment	$ 2.2
Maximum [Member]
Operating Leases [Abstract]
Operating Lease Term	6 years
Minimum [Member]
Operating Leases [Abstract]
Operating Lease Term	1 year