SUBSEQUENT EVENTS	3 Months Ended
Mar. 31, 2018
Subsequent Events [Abstract]
SUBSEQUENT EVENTS	SUBSEQUENT EVENTS On April 9, 2018, we issued $600 million aggregate principal amount of senior unsecured notes ("Senior Notes") through a public offering, at an issue price of 99.40 percent and received $592.5 million of proceeds. The Senior Notes bear an annual interest rate of 4.20 percent payable semi-annually on April 15 and October 15, until maturity on April 15, 2028. We incurred $5.5 million in expenses related to the issuance of the Senior Notes (including a $3.9 million underwriting fee), which have been deferred and are being recognized into interest expense over the life of the Senior Notes. Taking into effect the amortization of the original issue discount and all underwriting and issuance expenses, the Senior Notes have an effective yield to maturity of approximately 4.39 percent per annum. The proceeds from the Senior Notes were utilized to pay down the balance on our Credit Agreement. We may redeem the Senior Notes, in whole or in part, at any time and from time to time prior to their maturity at the applicable redemption prices described in the Senior Notes. Upon the occurrence of a “change of control triggering event” as defined in the Senior Notes (generally, a change of control of us accompanied by a reduction in the credit rating for the Senior Notes), we will generally be required to make an offer to repurchase the Senior Notes from holders at 101 percent of their principal amount plus accrued and unpaid interest to the date of repurchase. The Indenture contains covenants imposing certain limitations on the ability of us to incur liens, enter into sales and leaseback transactions, or consolidate, merge or transfer substantial all of its assets and those if our subsidiaries on a consolidated basis. It also provides for customary events of default (subject in certain cases to customary grace and cure periods), which include among other things nonpayment, breach of covenants in the Indenture and certain events of bankruptcy and insolvency. If an event of default occurs and is continuing with respect to the Senior Notes, the Trustee or holders of at least 25 percent in principal amount outstanding of the Senior Notes may declare the principal and the accrued and unpaid interest, if any, on all of the outstanding Senior Notes to be due and payable. These covenants and events of default are subject to a number of important qualifications, limitations and exceptions that are described in the Indenture. The indentures do not contain any financial ratios or specified levels of net worth or liquidity to which we must adhere.

SUBSEQUENT EVENTS

On April 9, 2018, we issued $600 million aggregate principal amount of senior unsecured notes ("Senior Notes") through a public offering, at an issue price of 99.40 percent and received $592.5 million of proceeds. The Senior Notes bear an annual interest rate of 4.20 percent payable semi-annually on April 15 and October 15, until maturity on April 15, 2028. We incurred $5.5 million in expenses related to the issuance of the Senior Notes (including a $3.9 million underwriting fee), which have been deferred and are being recognized into interest expense over the life of the Senior Notes. Taking into effect the amortization of the original issue discount and all underwriting and issuance expenses, the Senior Notes have an effective yield to maturity of approximately 4.39 percent per annum. The proceeds from the Senior Notes were utilized to pay down the balance on our Credit Agreement.

We may redeem the Senior Notes, in whole or in part, at any time and from time to time prior to their maturity at the applicable redemption prices described in the Senior Notes. Upon the occurrence of a “change of control triggering event” as defined in the Senior Notes (generally, a change of control of us accompanied by a reduction in the credit rating for the Senior Notes), we will generally be required to make an offer to repurchase the Senior Notes from holders at 101 percent of their principal amount plus accrued and unpaid interest to the date of repurchase.

The Indenture contains covenants imposing certain limitations on the ability of us to incur liens, enter into sales and leaseback transactions, or consolidate, merge or transfer substantial all of its assets and those if our subsidiaries on a consolidated basis. It also provides for customary events of default (subject in certain cases to customary grace and cure periods), which include among other things nonpayment, breach of covenants in the Indenture and certain events of bankruptcy and insolvency. If an event of default occurs and is continuing with respect to the Senior Notes, the Trustee or holders of at least 25 percent in principal amount outstanding of the Senior Notes may declare the principal and the accrued and unpaid interest, if any, on all of the outstanding Senior Notes to be due and payable. These covenants and events of default are subject to a number of important qualifications, limitations and exceptions that are described in the Indenture. The indentures do not contain any financial ratios or specified levels of net worth or liquidity to which we must adhere.