DEBT (Details) - Revolving Credit Facility [Member] - USD ($)		May 02, 2018	Jun. 30, 2018	Dec. 31, 2017
Accordion Feature [Member] | Maximum [Member]
Long-term line of credit		$ 3,500,000,000.0
Line of Credit [Member]
Long-term line of credit	[1]		$ 350,000,000	$ 350,000,000
Line of Credit [Member] | Maximum [Member]
Long-term line of credit		$ 3,400,000,000.0
Fronting fee percentage		0.25%
Base Rate [Member] | Line of Credit [Member] | Maximum [Member]
Basis spread on variable rate		1.00%
Base Rate [Member] | Line of Credit [Member] | Minimum [Member]
Basis spread on variable rate		0.25%
London Interbank Offered Rate (LIBOR) [Member] | Line of Credit [Member] | Maximum [Member]
Basis spread on variable rate		2.00%
London Interbank Offered Rate (LIBOR) [Member] | Line of Credit [Member] | Minimum [Member]
Basis spread on variable rate		1.25%
Company Credit Rating [Member] | Line of Credit [Member] | Maximum [Member]
Basis spread on variable rate		1.75%
Company Credit Rating [Member] | Line of Credit [Member] | Minimum [Member]
Basis spread on variable rate		1.00%

[1] The estimated fair value approximates carrying value, categorized as a Level 2 measurement, as these borrowings bear interest based upon short-term floating market interest rates. As disclosed in Note 7, “Debt” and Note 17, “Subsequent Events”, on July 30, 2018, PBFX entered into the PBFX A&R Revolving Credit Facility, that among other things, extended the maturity date from May 2019 to July 2023. As such, the outstanding balance on the PBFX Revolving Credit Facility as of June 30, 2018 is classified as long-term debt on the condensed consolidated balance sheet.