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State and Local Incentives (Policy)	12 Months Ended
State and Local Incentives (Policy)	Dec. 31, 2017
State and Local Incentives [Abstract]
State and Local Incentives	State and Local Incentives The Company records state and local incentives when there is reasonable assurance that the incentive will be received and the Company is able to comply with the conditions attached to the incentives received. State and local incentives related to assets are recorded as deferred income and recognized on a straight-line basis over the useful life of the related long-lived assets of seven to sixteen years.