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CASH AND CASH EQUIVALENTS	12 Months Ended
CASH AND CASH EQUIVALENTS	Dec. 31, 2014
Supplemental Cash Flow Information [Abstract]
CASH AND CASH EQUIVALENTS	Cash and Cash Equivalents Construction costs funded through accounts payable totaled $54.0 million, $37.3 million, and $24.8 million in 2014, 2013, and 2012, respectively. These costs were treated as noncash investing activities.