PENSION AND OTHER POSTRETIREMENT BENEFITS 9 (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended						12 Months Ended																																																																																																																																																						12 Months Ended																		12 Months Ended													12 Months Ended																																																																																					12 Months Ended
	Dec. 31, 2012 Pension Benefits [Member]	Dec. 31, 2010 Pension Benefits [Member]	Dec. 31, 2012 Pension Benefits [Member] Fair Value, Inputs, Level 1 [Member]	Dec. 31, 2011 Pension Benefits [Member] Fair Value, Inputs, Level 1 [Member]	Dec. 31, 2012 Pension Benefits [Member] Fair Value, Inputs, Level 2 [Member]	Dec. 31, 2011 Pension Benefits [Member] Fair Value, Inputs, Level 2 [Member]	Dec. 31, 2012 Pension Benefits [Member] Fair Value, Inputs, Level 3 [Member]	Dec. 31, 2011 Pension Benefits [Member] Fair Value, Inputs, Level 3 [Member]	Dec. 31, 2012 Pension Benefits [Member] Cash / Cash Equivalents, Common / Collective Trust Funds [Member]		Dec. 31, 2011 Pension Benefits [Member] Cash / Cash Equivalents, Common / Collective Trust Funds [Member]		Dec. 31, 2012 Pension Benefits [Member] Cash / Cash Equivalents, Common / Collective Trust Funds [Member] Fair Value, Inputs, Level 1 [Member]		Dec. 31, 2011 Pension Benefits [Member] Cash / Cash Equivalents, Common / Collective Trust Funds [Member] Fair Value, Inputs, Level 1 [Member]		Dec. 31, 2012 Pension Benefits [Member] Cash / Cash Equivalents, Common / Collective Trust Funds [Member] Fair Value, Inputs, Level 2 [Member]		Dec. 31, 2011 Pension Benefits [Member] Cash / Cash Equivalents, Common / Collective Trust Funds [Member] Fair Value, Inputs, Level 2 [Member]		Dec. 31, 2012 Pension Benefits [Member] Cash / Cash Equivalents, Common / Collective Trust Funds [Member] Fair Value, Inputs, Level 3 [Member]		Dec. 31, 2011 Pension Benefits [Member] Cash / Cash Equivalents, Common / Collective Trust Funds [Member] Fair Value, Inputs, Level 3 [Member]		Dec. 31, 2012 Pension Benefits [Member] Cash / Cash Equivalents, STIF-Type Instrument [Member]		Dec. 31, 2011 Pension Benefits [Member] Cash / Cash Equivalents, STIF-Type Instrument [Member]		Dec. 31, 2012 Pension Benefits [Member] Cash / Cash Equivalents, STIF-Type Instrument [Member] Fair Value, Inputs, Level 1 [Member]		Dec. 31, 2011 Pension Benefits [Member] Cash / Cash Equivalents, STIF-Type Instrument [Member] Fair Value, Inputs, Level 1 [Member]		Dec. 31, 2012 Pension Benefits [Member] Cash / Cash Equivalents, STIF-Type Instrument [Member] Fair Value, Inputs, Level 2 [Member]		Dec. 31, 2011 Pension Benefits [Member] Cash / Cash Equivalents, STIF-Type Instrument [Member] Fair Value, Inputs, Level 2 [Member]		Dec. 31, 2012 Pension Benefits [Member] Cash / Cash Equivalents, STIF-Type Instrument [Member] Fair Value, Inputs, Level 3 [Member]		Dec. 31, 2011 Pension Benefits [Member] Cash / Cash Equivalents, STIF-Type Instrument [Member] Fair Value, Inputs, Level 3 [Member]		Dec. 31, 2012 Pension Benefits [Member] Equity Securities, U.S. Securities, Large Cap [Member]		Dec. 31, 2011 Pension Benefits [Member] Equity Securities, U.S. Securities, Large Cap [Member]		Dec. 31, 2012 Pension Benefits [Member] Equity Securities, U.S. Securities, Large Cap [Member] Fair Value, Inputs, Level 1 [Member]		Dec. 31, 2011 Pension Benefits [Member] Equity Securities, U.S. Securities, Large Cap [Member] Fair Value, Inputs, Level 1 [Member]		Dec. 31, 2012 Pension Benefits [Member] Equity Securities, U.S. Securities, Large Cap [Member] Fair Value, Inputs, Level 2 [Member]		Dec. 31, 2011 Pension Benefits [Member] Equity Securities, U.S. Securities, Large Cap [Member] Fair Value, Inputs, Level 2 [Member]		Dec. 31, 2012 Pension Benefits [Member] Equity Securities, U.S. Securities, Large Cap [Member] Fair Value, Inputs, Level 3 [Member]		Dec. 31, 2011 Pension Benefits [Member] Equity Securities, U.S. Securities, Large Cap [Member] Fair Value, Inputs, Level 3 [Member]		Dec. 31, 2012 Pension Benefits [Member] Equity Securities, U.S. Securities, Common/Collective Trust Funds [Member]		Dec. 31, 2011 Pension Benefits [Member] Equity Securities, U.S. Securities, Common/Collective Trust Funds [Member]		Dec. 31, 2012 Pension Benefits [Member] Equity Securities, U.S. Securities, Common/Collective Trust Funds [Member] Fair Value, Inputs, Level 1 [Member]		Dec. 31, 2011 Pension Benefits [Member] Equity Securities, U.S. Securities, Common/Collective Trust Funds [Member] Fair Value, Inputs, Level 1 [Member]		Dec. 31, 2012 Pension Benefits [Member] Equity Securities, U.S. Securities, Common/Collective Trust Funds [Member] Fair Value, Inputs, Level 2 [Member]		Dec. 31, 2011 Pension Benefits [Member] Equity Securities, U.S. Securities, Common/Collective Trust Funds [Member] Fair Value, Inputs, Level 2 [Member]		Dec. 31, 2012 Pension Benefits [Member] Equity Securities, U.S. Securities, Common/Collective Trust Funds [Member] Fair Value, Inputs, Level 3 [Member]		Dec. 31, 2011 Pension Benefits [Member] Equity Securities, U.S. Securities, Common/Collective Trust Funds [Member] Fair Value, Inputs, Level 3 [Member]		Dec. 31, 2012 Pension Benefits [Member] Equity Securities, U.S. Mid-Cap [Member]		Dec. 31, 2011 Pension Benefits [Member] Equity Securities, U.S. Mid-Cap [Member]		Dec. 31, 2012 Pension Benefits [Member] Equity Securities, U.S. Mid-Cap [Member] Fair Value, Inputs, Level 1 [Member]		Dec. 31, 2011 Pension Benefits [Member] Equity Securities, U.S. Mid-Cap [Member] Fair Value, Inputs, Level 1 [Member]		Dec. 31, 2012 Pension Benefits [Member] Equity Securities, U.S. Mid-Cap [Member] Fair Value, Inputs, Level 2 [Member]		Dec. 31, 2011 Pension Benefits [Member] Equity Securities, U.S. Mid-Cap [Member] Fair Value, Inputs, Level 2 [Member]		Dec. 31, 2012 Pension Benefits [Member] Equity Securities, U.S. Mid-Cap [Member] Fair Value, Inputs, Level 3 [Member]		Dec. 31, 2011 Pension Benefits [Member] Equity Securities, U.S. Mid-Cap [Member] Fair Value, Inputs, Level 3 [Member]		Dec. 31, 2012 Pension Benefits [Member] Equity Securities, U.S. Securities, Small Cap [Member]		Dec. 31, 2012 Pension Benefits [Member] Equity Securities, U.S. Securities, Small Cap [Member] Fair Value, Inputs, Level 1 [Member]		Dec. 31, 2012 Pension Benefits [Member] Equity Securities, U.S. Securities, Small Cap [Member] Fair Value, Inputs, Level 2 [Member]		Dec. 31, 2012 Pension Benefits [Member] Equity Securities, U.S. Securities, Small Cap [Member] Fair Value, Inputs, Level 3 [Member]		Dec. 31, 2012 Pension Benefits [Member] Equity Securities, International Securities [Member]		Dec. 31, 2011 Pension Benefits [Member] Equity Securities, International Securities [Member]		Dec. 31, 2012 Pension Benefits [Member] Equity Securities, International Securities [Member] Fair Value, Inputs, Level 1 [Member]		Dec. 31, 2011 Pension Benefits [Member] Equity Securities, International Securities [Member] Fair Value, Inputs, Level 1 [Member]		Dec. 31, 2012 Pension Benefits [Member] Equity Securities, International Securities [Member] Fair Value, Inputs, Level 2 [Member]		Dec. 31, 2011 Pension Benefits [Member] Equity Securities, International Securities [Member] Fair Value, Inputs, Level 2 [Member]		Dec. 31, 2012 Pension Benefits [Member] Equity Securities, International Securities [Member] Fair Value, Inputs, Level 3 [Member]		Dec. 31, 2011 Pension Benefits [Member] Equity Securities, International Securities [Member] Fair Value, Inputs, Level 3 [Member]		Dec. 31, 2012 Pension Benefits [Member] Equity Securities, International Securities, Common/Collective Trust Funds [Member]		Dec. 31, 2011 Pension Benefits [Member] Equity Securities, International Securities, Common/Collective Trust Funds [Member]		Dec. 31, 2012 Pension Benefits [Member] Equity Securities, International Securities, Common/Collective Trust Funds [Member] Fair Value, Inputs, Level 1 [Member]		Dec. 31, 2011 Pension Benefits [Member] Equity Securities, International Securities, Common/Collective Trust Funds [Member] Fair Value, Inputs, Level 1 [Member]		Dec. 31, 2012 Pension Benefits [Member] Equity Securities, International Securities, Common/Collective Trust Funds [Member] Fair Value, Inputs, Level 2 [Member]		Dec. 31, 2011 Pension Benefits [Member] Equity Securities, International Securities, Common/Collective Trust Funds [Member] Fair Value, Inputs, Level 2 [Member]		Dec. 31, 2012 Pension Benefits [Member] Equity Securities, International Securities, Common/Collective Trust Funds [Member] Fair Value, Inputs, Level 3 [Member]		Dec. 31, 2011 Pension Benefits [Member] Equity Securities, International Securities, Common/Collective Trust Funds [Member] Fair Value, Inputs, Level 3 [Member]		Dec. 31, 2012 Pension Benefits [Member] Fixed Income, Common/Collective Trust Funds [Member]		Dec. 31, 2011 Pension Benefits [Member] Fixed Income, Common/Collective Trust Funds [Member]		Dec. 31, 2012 Pension Benefits [Member] Fixed Income, Common/Collective Trust Funds [Member] Fair Value, Inputs, Level 1 [Member]		Dec. 31, 2011 Pension Benefits [Member] Fixed Income, Common/Collective Trust Funds [Member] Fair Value, Inputs, Level 1 [Member]		Dec. 31, 2012 Pension Benefits [Member] Fixed Income, Common/Collective Trust Funds [Member] Fair Value, Inputs, Level 2 [Member]		Dec. 31, 2011 Pension Benefits [Member] Fixed Income, Common/Collective Trust Funds [Member] Fair Value, Inputs, Level 2 [Member]		Dec. 31, 2012 Pension Benefits [Member] Fixed Income, Common/Collective Trust Funds [Member] Fair Value, Inputs, Level 3 [Member]		Dec. 31, 2011 Pension Benefits [Member] Fixed Income, Common/Collective Trust Funds [Member] Fair Value, Inputs, Level 3 [Member]		Dec. 31, 2012 Pension Benefits [Member] Fixed Income, Guaranteed Insurance Contract [Member]		Dec. 31, 2011 Pension Benefits [Member] Fixed Income, Guaranteed Insurance Contract [Member]		Dec. 31, 2012 Pension Benefits [Member] Fixed Income, Guaranteed Insurance Contract [Member] Fair Value, Inputs, Level 1 [Member]		Dec. 31, 2011 Pension Benefits [Member] Fixed Income, Guaranteed Insurance Contract [Member] Fair Value, Inputs, Level 1 [Member]		Dec. 31, 2012 Pension Benefits [Member] Fixed Income, Guaranteed Insurance Contract [Member] Fair Value, Inputs, Level 2 [Member]		Dec. 31, 2011 Pension Benefits [Member] Fixed Income, Guaranteed Insurance Contract [Member] Fair Value, Inputs, Level 2 [Member]		Dec. 31, 2012 Pension Benefits [Member] Fixed Income, Guaranteed Insurance Contract [Member] Fair Value, Inputs, Level 3 [Member]		Dec. 31, 2011 Pension Benefits [Member] Fixed Income, Guaranteed Insurance Contract [Member] Fair Value, Inputs, Level 3 [Member]		Dec. 31, 2012 Pension Benefits [Member] Fixed Income, Hedge Funds [Member] Fair Value, Inputs, Level 3 [Member]	Dec. 31, 2011 Pension Benefits [Member] Fixed Income, Hedge Funds [Member] Fair Value, Inputs, Level 3 [Member]	Dec. 31, 2012 Pension Benefits [Member] Private Equity Funds [Member]		Dec. 31, 2011 Pension Benefits [Member] Private Equity Funds [Member]		Dec. 31, 2012 Pension Benefits [Member] Private Equity Funds [Member] Fair Value, Inputs, Level 1 [Member]		Dec. 31, 2011 Pension Benefits [Member] Private Equity Funds [Member] Fair Value, Inputs, Level 1 [Member]		Dec. 31, 2012 Pension Benefits [Member] Private Equity Funds [Member] Fair Value, Inputs, Level 2 [Member]		Dec. 31, 2011 Pension Benefits [Member] Private Equity Funds [Member] Fair Value, Inputs, Level 2 [Member]		Dec. 31, 2012 Pension Benefits [Member] Private Equity Funds [Member] Fair Value, Inputs, Level 3 [Member]		Dec. 31, 2011 Pension Benefits [Member] Private Equity Funds [Member] Fair Value, Inputs, Level 3 [Member]		Dec. 31, 2012 Pension Benefits [Member] Real Estate, Common/Collective Trust Fund [Member]	Dec. 31, 2011 Pension Benefits [Member] Real Estate, Common/Collective Trust Fund [Member]		Dec. 31, 2012 Pension Benefits [Member] Real Estate, Common/Collective Trust Fund [Member] Fair Value, Inputs, Level 1 [Member]	Dec. 31, 2011 Pension Benefits [Member] Real Estate, Common/Collective Trust Fund [Member] Fair Value, Inputs, Level 1 [Member]		Dec. 31, 2012 Pension Benefits [Member] Real Estate, Common/Collective Trust Fund [Member] Fair Value, Inputs, Level 2 [Member]	Dec. 31, 2011 Pension Benefits [Member] Real Estate, Common/Collective Trust Fund [Member] Fair Value, Inputs, Level 2 [Member]		Dec. 31, 2012 Pension Benefits [Member] Real Estate, Common/Collective Trust Fund [Member] Fair Value, Inputs, Level 3 [Member]		Dec. 31, 2011 Pension Benefits [Member] Real Estate, Common/Collective Trust Fund [Member] Fair Value, Inputs, Level 3 [Member]		Dec. 31, 2012 Other Postretirement Benefits [Member]	Dec. 31, 2011 Other Postretirement Benefits [Member]	Dec. 31, 2010 Other Postretirement Benefits [Member]	Dec. 31, 2012 Other Postretirement Benefits [Member] Fair Value, Inputs, Level 1 [Member]	Dec. 31, 2011 Other Postretirement Benefits [Member] Fair Value, Inputs, Level 1 [Member]	Dec. 31, 2012 Other Postretirement Benefits [Member] Fair Value, Inputs, Level 2 [Member]	Dec. 31, 2011 Other Postretirement Benefits [Member] Fair Value, Inputs, Level 2 [Member]	Dec. 31, 2012 Other Postretirement Benefits [Member] Fair Value, Inputs, Level 3 [Member]	Dec. 31, 2011 Other Postretirement Benefits [Member] Fair Value, Inputs, Level 3 [Member]	Dec. 31, 2012 Other Postretirement Benefits [Member] Equity Securities, U.S. Securities, Common/Collective Trust Funds [Member]		Dec. 31, 2011 Other Postretirement Benefits [Member] Equity Securities, U.S. Securities, Common/Collective Trust Funds [Member]		Dec. 31, 2012 Other Postretirement Benefits [Member] Equity Securities, U.S. Securities, Common/Collective Trust Funds [Member] Fair Value, Inputs, Level 1 [Member]		Dec. 31, 2011 Other Postretirement Benefits [Member] Equity Securities, U.S. Securities, Common/Collective Trust Funds [Member] Fair Value, Inputs, Level 1 [Member]		Dec. 31, 2012 Other Postretirement Benefits [Member] Equity Securities, U.S. Securities, Common/Collective Trust Funds [Member] Fair Value, Inputs, Level 2 [Member]		Dec. 31, 2011 Other Postretirement Benefits [Member] Equity Securities, U.S. Securities, Common/Collective Trust Funds [Member] Fair Value, Inputs, Level 2 [Member]		Dec. 31, 2012 Other Postretirement Benefits [Member] Equity Securities, U.S. Securities, Common/Collective Trust Funds [Member] Fair Value, Inputs, Level 3 [Member]		Dec. 31, 2011 Other Postretirement Benefits [Member] Equity Securities, U.S. Securities, Common/Collective Trust Funds [Member] Fair Value, Inputs, Level 3 [Member]		Dec. 31, 2012 Other Postretirement Benefits [Member] Equity Securities, Mutual Fund, U.S. Large Cap [Member]		Dec. 31, 2011 Other Postretirement Benefits [Member] Equity Securities, Mutual Fund, U.S. Large Cap [Member]		Dec. 31, 2012 Other Postretirement Benefits [Member] Equity Securities, Mutual Fund, U.S. Large Cap [Member] Fair Value, Inputs, Level 1 [Member]		Dec. 31, 2011 Other Postretirement Benefits [Member] Equity Securities, Mutual Fund, U.S. Large Cap [Member] Fair Value, Inputs, Level 1 [Member]		Dec. 31, 2012 Other Postretirement Benefits [Member] Equity Securities, Mutual Fund, U.S. Large Cap [Member] Fair Value, Inputs, Level 2 [Member]		Dec. 31, 2011 Other Postretirement Benefits [Member] Equity Securities, Mutual Fund, U.S. Large Cap [Member] Fair Value, Inputs, Level 2 [Member]		Dec. 31, 2012 Other Postretirement Benefits [Member] Equity Securities, Mutual Fund, U.S. Large Cap [Member] Fair Value, Inputs, Level 3 [Member]		Dec. 31, 2011 Other Postretirement Benefits [Member] Equity Securities, Mutual Fund, U.S. Large Cap [Member] Fair Value, Inputs, Level 3 [Member]		Dec. 31, 2012 Other Postretirement Benefits [Member] Equity Securities, International Securities, Common/Collective Trust Funds [Member]		Dec. 31, 2011 Other Postretirement Benefits [Member] Equity Securities, International Securities, Common/Collective Trust Funds [Member]		Dec. 31, 2012 Other Postretirement Benefits [Member] Equity Securities, International Securities, Common/Collective Trust Funds [Member] Fair Value, Inputs, Level 1 [Member]		Dec. 31, 2011 Other Postretirement Benefits [Member] Equity Securities, International Securities, Common/Collective Trust Funds [Member] Fair Value, Inputs, Level 1 [Member]		Dec. 31, 2012 Other Postretirement Benefits [Member] Equity Securities, International Securities, Common/Collective Trust Funds [Member] Fair Value, Inputs, Level 2 [Member]		Dec. 31, 2011 Other Postretirement Benefits [Member] Equity Securities, International Securities, Common/Collective Trust Funds [Member] Fair Value, Inputs, Level 2 [Member]		Dec. 31, 2012 Other Postretirement Benefits [Member] Equity Securities, International Securities, Common/Collective Trust Funds [Member] Fair Value, Inputs, Level 3 [Member]		Dec. 31, 2011 Other Postretirement Benefits [Member] Equity Securities, International Securities, Common/Collective Trust Funds [Member] Fair Value, Inputs, Level 3 [Member]		Dec. 31, 2011 Other Postretirement Benefits [Member] Equity Securities, Mutual Fund, International [Member]		Dec. 31, 2011 Other Postretirement Benefits [Member] Equity Securities, Mutual Fund, International [Member] Fair Value, Inputs, Level 1 [Member]		Dec. 31, 2011 Other Postretirement Benefits [Member] Equity Securities, Mutual Fund, International [Member] Fair Value, Inputs, Level 2 [Member]		Dec. 31, 2011 Other Postretirement Benefits [Member] Equity Securities, Mutual Fund, International [Member] Fair Value, Inputs, Level 3 [Member]		Dec. 31, 2012 Other Postretirement Benefits [Member] Fixed Income, Common/Collective Trust Funds [Member]		Dec. 31, 2011 Other Postretirement Benefits [Member] Fixed Income, Common/Collective Trust Funds [Member]		Dec. 31, 2012 Other Postretirement Benefits [Member] Fixed Income, Common/Collective Trust Funds [Member] Fair Value, Inputs, Level 1 [Member]		Dec. 31, 2011 Other Postretirement Benefits [Member] Fixed Income, Common/Collective Trust Funds [Member] Fair Value, Inputs, Level 1 [Member]		Dec. 31, 2012 Other Postretirement Benefits [Member] Fixed Income, Common/Collective Trust Funds [Member] Fair Value, Inputs, Level 2 [Member]		Dec. 31, 2011 Other Postretirement Benefits [Member] Fixed Income, Common/Collective Trust Funds [Member] Fair Value, Inputs, Level 2 [Member]		Dec. 31, 2012 Other Postretirement Benefits [Member] Fixed Income, Common/Collective Trust Funds [Member] Fair Value, Inputs, Level 3 [Member]		Dec. 31, 2011 Other Postretirement Benefits [Member] Fixed Income, Common/Collective Trust Funds [Member] Fair Value, Inputs, Level 3 [Member]		Dec. 31, 2012 Minimum [Member] Other Postretirement Benefits [Member] Equity Securities, U.S. Securities [Member]	Dec. 31, 2012 Minimum [Member] Other Postretirement Benefits [Member] Equity Securities, International Securities [Member]	Dec. 31, 2012 Minimum [Member] Other Postretirement Benefits [Member] Fixed Income Funds [Member]	Dec. 31, 2012 Maximum [Member] Other Postretirement Benefits [Member] Equity Securities, U.S. Securities [Member]	Dec. 31, 2012 Maximum [Member] Other Postretirement Benefits [Member] Equity Securities, International Securities [Member]	Dec. 31, 2012 Maximum [Member] Other Postretirement Benefits [Member] Fixed Income Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	$ 119,391	$ 95,746	$ 12,790	$ 11,849	$ 89,368	$ 63,426	$ 17,233	$ 16,463	$ 477	[1]	$ 538	[1]	$ 0	[1]	$ 0	[1]	$ 477	[1]	$ 538	[1]	$ 0	[1]	$ 0	[1]	$ 840	[2]	$ 815	[2]	$ 0	[2]	$ 0	[2]	$ 840	[2]	$ 815	[2]	$ 0	[2]	$ 0	[2]	$ 7,126	[3]	$ 5,377	[3]	$ 7,126	[3]	$ 5,377	[3]	$ 0	[3]	$ 0	[3]	$ 0	[3]	$ 0	[3]	$ 33,690	[1]	$ 25,903	[1]	$ 0	[1]	$ 0	[1]	$ 33,690	[1]	$ 25,903	[1]	$ 0	[1]	$ 0	[1]	$ 4,194	[3]	$ 4,793	[3]	$ 4,194	[3]	$ 4,793	[3]	$ 0	[3]	$ 0	[3]	$ 0	[3]	$ 0	[3]	$ 8	[3]	$ 8	[3]	$ 0	[3]	$ 0	[3]	$ 1,462	[3]	$ 1,679	[3]	$ 1,462	[3]	$ 1,679	[3]	$ 0	[3]	$ 0	[3]	$ 0	[3]	$ 0	[3]	$ 23,448	[1]	$ 12,782	[1]		[1]	$ 0	[1]	$ 23,448	[1]	$ 12,782	[1]		[1]	$ 0	[1]	$ 30,913	[1]	$ 23,388	[1]	$ 0	[1]	$ 0	[1]	$ 30,913	[1]	$ 23,388	[1]	$ 0	[1]	$ 0	[1]	$ 9,898	[4]	$ 9,647	[4]	$ 0	[4]	$ 0	[4]	$ 0	[4]	$ 0	[4]	$ 9,898	[4]	$ 9,647	[4]	$ 0	$ 0	$ 2,557	[5]	$ 2,525	[6]	$ 0	[5]	$ 0	[6]	$ 0	[5]	$ 0	[6]	$ 2,557	[5]	$ 2,525	[6]	$ 4,778	$ 4,291	[5]	$ 0	$ 0	[5]	$ 0	$ 0	[5]	$ 4,778		$ 4,291	[5]	$ 32,694	$ 28,942	$ 29,145	$ 2,326	$ 2,598	$ 30,368	$ 26,344	$ 0	$ 0	$ 9,972	[1]	$ 8,970	[1]	$ 0	[1]	$ 0	[1]	$ 9,972	[1]	$ 8,970	[1]	$ 0	[1]	$ 0	[1]	$ 2,326	[7]	$ 1,834	[7]	$ 2,326	[7]	$ 1,834	[7]	$ 0	[7]	$ 0	[7]	$ 0	[7]	$ 0	[7]	$ 8,475	[1]	$ 5,539	[1]	$ 0	[1]	$ 0	[1]	$ 8,475	[1]	$ 5,539	[1]	$ 0	[1]	$ 0	[1]	$ 764	[7]	$ 764	[7]	$ 0	[7]	$ 0	[7]	$ 11,921	[1]	$ 11,835	[7]	$ 0	[1]	$ 0	[7]	$ 11,921	[1]	$ 11,835	[7]	$ 0	[1]	$ 0	[7]
Fund Valuations Lag Period	90 days
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value of Plan Assets at Beginning of Year	91,738	95,746	12,790	11,849	89,368	63,426	16,463	16,244	477	[1]	538	[1]	0	[1]	0	[1]	477	[1]	538	[1]	0	[1]	0	[1]	840	[2]	815	[2]	0	[2]	0	[2]	840	[2]	815	[2]	0	[2]	0	[2]	7,126	[3]	5,377	[3]	7,126	[3]	5,377	[3]	0	[3]	0	[3]	0	[3]	0	[3]	33,690	[1]	25,903	[1]	0	[1]	0	[1]	33,690	[1]	25,903	[1]	0	[1]	0	[1]	4,194	[3]	4,793	[3]	4,194	[3]	4,793	[3]	0	[3]	0	[3]	0	[3]	0	[3]	8	[3]	8	[3]	0	[3]	0	[3]	1,462	[3]	1,679	[3]	1,462	[3]	1,679	[3]	0	[3]	0	[3]	0	[3]	0	[3]	23,448	[1]	12,782	[1]		[1]	0	[1]	23,448	[1]	12,782	[1]		[1]	0	[1]	30,913	[1]	23,388	[1]	0	[1]	0	[1]	30,913	[1]	23,388	[1]	0	[1]	0	[1]	9,898	[4]	9,647	[4]	0	[4]	0	[4]	0	[4]	0	[4]	9,647	[4]	9,972		0	98	2,557	[5]	2,525	[6]	0	[5]	0	[6]	0	[5]	0	[6]	2,525	[6]	2,503		4,778	4,291	[5]	0	0	[5]	0	0	[5]	4,291	[5]	3,671		32,694	28,942	29,145	2,326	2,598	30,368	26,344	0	0	9,972	[1]	8,970	[1]	0	[1]	0	[1]	9,972	[1]	8,970	[1]	0	[1]	0	[1]	2,326	[7]	1,834	[7]	2,326	[7]	1,834	[7]	0	[7]	0	[7]	0	[7]	0	[7]	8,475	[1]	5,539	[1]	0	[1]	0	[1]	8,475	[1]	5,539	[1]	0	[1]	0	[1]	764	[7]	764	[7]	0	[7]	0	[7]	11,921	[1]	11,835	[7]	0	[1]	0	[7]	11,921	[1]	11,835	[7]	0	[1]	0	[7]
Actual return on plan assets [Abstract]
Relating to assets still held at the reporting date							1,447	1,617																																																																																																																																																					1,082		656		0	0													(122)		304											487		657
Relating to assets sold during the period							470	4																																																																																																																																																					(10)		6		0	(2)													480		0											0		0
Purchases, Sales, and Settlements							(1,147)	(1,402)																																																																																																																																																					(821)		(987)		0	(96)													(326)		(282)											0		(37)
Fair Value of Plan Assets at End of Year	$ 119,391	$ 95,746	$ 12,790	$ 11,849	$ 89,368	$ 63,426	$ 17,233	$ 16,463	$ 477	[1]	$ 538	[1]	$ 0	[1]	$ 0	[1]	$ 477	[1]	$ 538	[1]	$ 0	[1]	$ 0	[1]	$ 840	[2]	$ 815	[2]	$ 0	[2]	$ 0	[2]	$ 840	[2]	$ 815	[2]	$ 0	[2]	$ 0	[2]	$ 7,126	[3]	$ 5,377	[3]	$ 7,126	[3]	$ 5,377	[3]	$ 0	[3]	$ 0	[3]	$ 0	[3]	$ 0	[3]	$ 33,690	[1]	$ 25,903	[1]	$ 0	[1]	$ 0	[1]	$ 33,690	[1]	$ 25,903	[1]	$ 0	[1]	$ 0	[1]	$ 4,194	[3]	$ 4,793	[3]	$ 4,194	[3]	$ 4,793	[3]	$ 0	[3]	$ 0	[3]	$ 0	[3]	$ 0	[3]	$ 8	[3]	$ 8	[3]	$ 0	[3]	$ 0	[3]	$ 1,462	[3]	$ 1,679	[3]	$ 1,462	[3]	$ 1,679	[3]	$ 0	[3]	$ 0	[3]	$ 0	[3]	$ 0	[3]	$ 23,448	[1]	$ 12,782	[1]		[1]	$ 0	[1]	$ 23,448	[1]	$ 12,782	[1]		[1]	$ 0	[1]	$ 30,913	[1]	$ 23,388	[1]	$ 0	[1]	$ 0	[1]	$ 30,913	[1]	$ 23,388	[1]	$ 0	[1]	$ 0	[1]	$ 9,898	[4]	$ 9,647	[4]	$ 0	[4]	$ 0	[4]	$ 0	[4]	$ 0	[4]	$ 9,898	[4]	$ 9,647	[4]	$ 0	$ 0	$ 2,557	[5]	$ 2,525	[6]	$ 0	[5]	$ 0	[6]	$ 0	[5]	$ 0	[6]	$ 2,557	[5]	$ 2,525	[6]	$ 4,778	$ 4,291	[5]	$ 0	$ 0	[5]	$ 0	$ 0	[5]	$ 4,778		$ 4,291	[5]	$ 32,694	$ 28,942	$ 29,145	$ 2,326	$ 2,598	$ 30,368	$ 26,344	$ 0	$ 0	$ 9,972	[1]	$ 8,970	[1]	$ 0	[1]	$ 0	[1]	$ 9,972	[1]	$ 8,970	[1]	$ 0	[1]	$ 0	[1]	$ 2,326	[7]	$ 1,834	[7]	$ 2,326	[7]	$ 1,834	[7]	$ 0	[7]	$ 0	[7]	$ 0	[7]	$ 0	[7]	$ 8,475	[1]	$ 5,539	[1]	$ 0	[1]	$ 0	[1]	$ 8,475	[1]	$ 5,539	[1]	$ 0	[1]	$ 0	[1]	$ 764	[7]	$ 764	[7]	$ 0	[7]	$ 0	[7]	$ 11,921	[1]	$ 11,835	[7]	$ 0	[1]	$ 0	[7]	$ 11,921	[1]	$ 11,835	[7]	$ 0	[1]	$ 0	[7]
Target plan allocations																																																																																																																																																																																																																																																																																	33.00%	20.00%	32.00%	43.00%	30.00%	42.00%

[1] This category represents common/collective trust fund investments through a commingled employee benefit trust (excluding real estate). These commingled funds are not traded publicly; however, the majority of the underlying assets held in these funds are stocks and bonds that are traded on active markets and prices for these assets are readily observable. Also included in these funds are interest rate swaps, asset backed securities, mortgage backed securities and other investments with observable market values. Holdings in these commingled funds are classified as Level 2 investments.

[2] This category represents short-term investment funds held for the purpose of funding disbursement payment arrangements. Underlying assets are valued based on quoted prices in active markets, or where quoted prices are not available, based on models using observable market information. Since not all values can be obtained from quoted prices in active markets, these funds are classified as Level 2 investments.

[3] This category of equity investments represents a managed portfolio of common stock investments in five sectors: telecommunications, electric utilities, gas utilities, water and energy. These common stocks are actively traded on exchanges and price quotes for these shares are readily available. These common stocks are classified as Level 1 investments.

[4] This category represents SJI’s Group Annuity contracts with a nationally recognized life insurance company. The contracts are the assets of the plan, while the underlying assets of the contracts are owned by the contract holder. Valuation is based on a formula and calculation specified within the contract. Since the valuation is based on the reporting entity’s own assumptions, these contracts are classified as Level 3 investments.

[5] This category represents real estate common/collective trust fund investments through a commingled employee benefit trust. These commingled funds are part of a direct investment in a pool of real estate properties. These funds are valued by investment managers on a periodic basis using pricing models that use independent appraisals from sources with professional qualifications. Since these valuation inputs are not highly observable, the real estate funds are classified as Level 3 investments.

[6] This category represents a limited partnership which includes several investments in U.S. leveraged buyout, venture capital, and special situation funds. Fund valuations are reported on a 90 day lag and, therefore, the value reported herein represents the market value as of September 30, 2012 and 2011, respectively. The fund’s investments are stated at fair value, which is generally based on the valuations provided by the general partners or managers of such investments. Fund investments are illiquid and resale is restricted. These funds are classified as Level 3 investments.

[7] This category represents mutual fund investments. The mutual funds are actively traded on exchanges and price quotes for the shares are readily available. These mutual funds are classified as Level 1 investments.