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CONSOLIDATED AND COMBINED STATEMENTS OF EQUITY (Parenthetical) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
CONSOLIDATED AND COMBINED STATEMENTS OF EQUITY
Interest rate swaps, tax	$ 55	$ 1,016
Capitalized swap interest, tax	$ 724	$ 358

Tax effect of the change in accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges. Also includes an entity's share of an equity investee's increase (decrease) in deferred hedging gain (loss).

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