EQUITY OFFERING (Details) (USD $)
1 Months Ended
Jun. 30, 2014
Proceeds from (Repurchase of) Equity [Abstract]  
Equity offering in period, new shares (in shares) 3,450,000
New shares Issued, price per share (in dollars per share) $ 160.00
Proceeds from equity offering, net of transaction costs $ 529,360,000
Payments for underwriting expense 22,100,000
Payments of equity offering costs $ 500,000