EMPLOYEE BENEFIT PLANS (Details) (USD $)	4 Months Ended	9 Months Ended	0 Months Ended	5 Months Ended	12 Months Ended		4 Months Ended	5 Months Ended	12 Months Ended		4 Months Ended	9 Months Ended	5 Months Ended	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2012	May 02, 2008 Predecessor	Aug. 30, 2012 Predecessor	Mar. 29, 2012 Predecessor	Mar. 31, 2011 Predecessor	Dec. 31, 2012 Pension Benefits	Aug. 30, 2012 Pension Benefits Predecessor	Mar. 29, 2012 Pension Benefits Predecessor	Mar. 31, 2011 Pension Benefits Predecessor	Dec. 31, 2012 Other Benefits	Dec. 31, 2012 Other Benefits	Aug. 30, 2012 Other Benefits Predecessor	Mar. 29, 2012 Other Benefits Predecessor	Mar. 31, 2011 Other Benefits Predecessor
EMPLOYEE BENEFIT PLANS
Qualification age of employees for participation in the savings plan (in years)		21 years
Minimum service in first twelve months of employment for eligibility (in hours)		1000 hours
Initial period of employment for eligibility (in years)		12 months
Negative prior service cost recorded due to revision of plan			$ 5,969,000
Amortization period over which prior service cost will be amortized			11 years
Net periodic benefit cost recognized
Negative prior service cost recorded due to revision of plan			5,969,000
Amortization period over which prior service cost will be amortized			11 years
Components of net periodic benefit cost:
Service cost							59,000	76,000	180,000	180,000	61,000		74,000	149,000	154,000
Interest cost							1,484,000	1,962,000	4,640,000	4,612,000	306,000		435,000	1,122,000	1,275,000
Expected return on plan assets							(1,442,000)	(1,811,000)	(4,465,000)	(3,986,000)
Amortization of net loss								899,000	5,000	137,000			88,000
Amortization of prior service credit													(448,000)	(984,000)	(865,000)
Settlement							(15,000)
Net periodic benefit cost							86,000	1,126,000	360,000	943,000	367,000		149,000	287,000	564,000
Changes in other comprehensive loss
Net (gain) loss	(7,279,000)				18,939,000	664,000	(4,118,000)		15,615,000		(3,161,000)			3,324,000
Net prior service credit				(771,000)	(1,035,000)	(283,000)							(771,000)	(1,035,000)
Merger push-down accounting adjustment								(20,741,000)					3,804,000
Amortization of net gain (loss)								(899,000)	(5,000)				(88,000)
Amortization of prior service credit				448,000	984,000	865,000							448,000	984,000
Settlement							15,000
Total recognized in other comprehensive income							(4,103,000)	(21,640,000)	15,610,000		(3,161,000)		3,393,000	3,273,000
Net periodic benefit cost							86,000	1,126,000	360,000	943,000	367,000		149,000	287,000	564,000
Total recognized in net periodic benefit cost and other comprehensive income							(4,017,000)	(20,514,000)	15,970,000		(2,794,000)		3,542,000	3,560,000
Change in benefit obligation:
Benefit obligation at beginning of period							112,822,000	96,672,000	80,350,000		25,816,000		24,538,000	21,916,000
Service cost							59,000	76,000	180,000	180,000	61,000		74,000	149,000	154,000
Interest cost							1,484,000	1,962,000	4,640,000	4,612,000	306,000		435,000	1,122,000	1,275,000
Plan participant's contributions											196,000		227,000	517,000
Actuarial (gain) loss							(3,465,000)	15,161,000	14,162,000		(3,161,000)		1,828,000	3,325,000
Plan amendment													(771,000)	(1,035,000)
Benefits paid							(862,000)	(1,007,000)	(2,660,000)		(453,000)		(515,000)	(1,456,000)
Settlement							(320,000)	(42,000)
Benefit obligation at end of period							109,718,000	112,822,000	96,672,000	80,350,000	22,765,000	22,765,000	25,816,000	24,538,000	21,916,000
Change in plan assets:
Fair value of plan assets at beginning of period							66,059,000	64,236,000	59,776,000
Actual return on plan assets gain							2,095,000	977,000	3,011,000
Employer contribution							1,247,000	1,895,000	4,109,000		257,000		288,000	939,000
Plan participant's contributions											196,000		227,000	517,000
Benefits paid							(862,000)	(1,007,000)	(2,660,000)		(453,000)		(515,000)	(1,456,000)
Settlement							(320,000)	(42,000)
Fair value of plan assets at end of period							68,219,000	66,059,000	64,236,000	59,776,000
Net liability for benefit cost: Funded status							(41,499,000)	(46,763,000)	(32,436,000)		(22,765,000)	(22,765,000)	(25,816,000)	(24,538,000)
Amounts recognized in the Balance Sheet:
Accrued expenses and other liabilities	1,039,000	1,039,000					(154,000)	(40,000)	(155,000)		(885,000)	(885,000)	(1,016,000)	(1,062,000)
Other long-term liabilities	63,225,000	63,225,000					(41,345,000)	(46,723,000)	(32,281,000)		(21,880,000)	(21,880,000)	(24,800,000)	(23,476,000)
Net liability recognized							(41,499,000)	(46,763,000)	(32,436,000)		(22,765,000)	(22,765,000)	(25,816,000)	(24,538,000)
Aggregate accumulated benefit obligation							(109,718,000)	(112,822,000)	(96,672,000)	(80,350,000)	(22,765,000)	(22,765,000)	(25,816,000)	(24,538,000)	(21,916,000)
Pension plans with accumulated benefit obligations and projected benefit obligations in excess of plan assets
Aggregated accumulated benefit obligation							(109,718,000)		(96,672,000)
Aggregated projected benefit obligation							(109,718,000)		(96,672,000)
Aggregated fair value of plan assets							68,219,000		64,236,000
Amounts recognized in accumulated other comprehensive income
Net actuarial (gain) loss							(4,118,000)		21,639,000		(3,161,000)	(3,161,000)		4,823,000
Prior service credit														(8,216,000)
Amounts in accumulated other comprehensive income expected to be recognized in components of net periodic pension cost
Net actuarial gain												(78,000)
Weighted-average assumptions used to determine benefit obligations
Discount rate (as a percent)							4.17%	3.99%	4.86%		3.90%	3.90%	3.65%	4.42%
Weighted-average assumptions used to determine net periodic benefit cost
Discount rate (as a percent)							3.99%	4.86%	5.86%	6.16%	3.65%		4.42%	5.51%	5.97%
Weighted average expected long-term return on plan assets (as a percent)							7.27%	7.27%	8.00%	8.00%
Assumed annual rate of covered health care benefits for 2013 (as a percent)		8.00%
Assumed annual rate of covered health care benefits for 2019 (as a percent)		5.00%
Increase in the accumulated postretirement benefit obligation due to one-percentage-point increase in the assumed health care cost trend rate		2,292,000
Increase in the aggregate of the service and interest cost components of postretirement expense due to one-percentage-point increase in the assumed health care cost trend rate		34,000
Decrease in the accumulated postretirement benefit obligation due to one-percentage-point increase in the assumed health care cost trend rate		1,933,000
Increase the aggregate of the service and interest cost components of postretirement expense due to one-percentage-point increase in the assumed health care cost trend rate		$ 28,000