Accounts Receivable - Schedule of Accounts Affected by the Estimated Provisions (Details) (USD $)	0 Months Ended	12 Months Ended		36 Months Ended		46 Months Ended		3 Months Ended		12 Months Ended				3 Months Ended		9 Months Ended
	Mar. 05, 2013	Dec. 31, 2014		Dec. 31, 2012		Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2013		Dec. 31, 2012		Mar. 31, 2012		Sep. 28, 2012
Accrued Liabilities [Roll Forward]
Beginning balance		$ (35,829,000)
Ending balance		(42,647,000)				(35,829,000)				(35,829,000)
Recoveries		3,600,000
Recoveries pertaining to prior period		2,600,000
Increase (decrease) in employee related liabilities				3,600,000		3,600,000
Settlements and loss contingencies, net	(45,000,000)
Successor [Member]
Accounts Receivable Reserves [Roll Forward]
Beginning balance		(240,061,000)								(195,702,000)		(163,025,000)		(163,025,000)		(163,025,000)
Provision recorded for current period sales		(1,674,602,000)								(1,154,619,000)		(257,158,000)
(Provision) reversal recorded for prior period sales		1,179,000								2,223,000		0
Credits processed		1,525,273,000								1,108,037,000		224,481,000
Ending balance		(406,608,000)		(195,702,000)		(240,061,000)		(195,702,000)		(240,061,000)		(195,702,000)
Accrued Liabilities [Roll Forward]
Beginning balance		(35,829,000)	[1]							(42,162,000)	[1]	(42,455,000)	[1]	(42,455,000)	[1]	(42,455,000)	[1]
Credits processed		(84,840,000)	[1]							(80,726,000)	[1]	(24,437,000)	[1]
Accrued Government Pricing Liabilities, (Provision) Reversal for Prior Period Sales		2,805,000	[1],[2]							3,566,000	[1],[3]	0	[1]
Accrued Government Pricing Liabilities, Credits Processed		75,599,000	[1]							83,493,000	[1]	24,730,000	[1]
Ending balance		(42,647,000)	[1]	(42,162,000)	[1]	(35,829,000)	[1]	(42,162,000)	[1]	(35,829,000)	[1]	(42,162,000)	[1]
Settlements and loss contingencies, net		90,107,000						10,059,000		25,650,000
Successor [Member] | JHP Group Holdings [Member]
Accounts Receivable Reserves [Roll Forward]
Ending balance						(18,397,000)				(18,397,000)
Accrued Liabilities [Roll Forward]
Ending balance						(382,000)	[1]			(382,000)	[1]
Successor [Member] | Chargebacks [Member]
Accounts Receivable Reserves [Roll Forward]
Beginning balance		(48,766,000)								(41,670,000)		(24,223,000)		(24,223,000)		(24,223,000)
Provision recorded for current period sales		(871,139,000)								(630,097,000)		(132,834,000)
(Provision) reversal recorded for prior period sales		2,628,000	[4]							0	[4]	0	[4]
Credits processed		827,081,000								623,001,000		115,387,000
Ending balance		(96,492,000)		(41,670,000)		(48,766,000)		(41,670,000)		(48,766,000)		(41,670,000)
Successor [Member] | Chargebacks [Member] | JHP Group Holdings [Member]
Accounts Receivable Reserves [Roll Forward]
Ending balance						(6,296,000)				(6,296,000)
Successor [Member] | Rebates and incentive programs [Member]
Accounts Receivable Reserves [Roll Forward]
Beginning balance		(75,321,000)								(59,426,000)		(43,866,000)		(43,866,000)		(43,866,000)
Provision recorded for current period sales		(480,949,000)								(290,934,000)		(69,749,000)
(Provision) reversal recorded for prior period sales		0								659,000		0
Credits processed		422,770,000								274,380,000		54,189,000
Ending balance		(138,989,000)		(59,426,000)		(75,321,000)		(59,426,000)		(75,321,000)		(59,426,000)
Successor [Member] | Rebates and incentive programs [Member] | JHP Group Holdings [Member]
Accounts Receivable Reserves [Roll Forward]
Ending balance						(5,489,000)				(5,489,000)
Successor [Member] | Returns [Member]
Accounts Receivable Reserves [Roll Forward]
Beginning balance		(78,181,000)								(68,062,000)		(64,119,000)		(64,119,000)		(64,119,000)
Provision recorded for current period sales		(31,361,000)								(37,956,000)		(8,522,000)
(Provision) reversal recorded for prior period sales		0								0		0		(1,600,000)	[5]
Credits processed		30,032,000								27,837,000		4,579,000
Ending balance		(84,330,000)		(68,062,000)		(78,181,000)		(68,062,000)		(78,181,000)		(68,062,000)
Successor [Member] | Returns [Member] | JHP Group Holdings [Member]
Accounts Receivable Reserves [Roll Forward]
Ending balance						(4,820,000)				(4,820,000)
Successor [Member] | Cash discounts and other [Member]
Accounts Receivable Reserves [Roll Forward]
Beginning balance		(37,793,000)								(26,544,000)		(30,817,000)		(30,817,000)		(30,817,000)
Provision recorded for current period sales		(291,153,000)								(195,632,000)		(46,053,000)
(Provision) reversal recorded for prior period sales		(1,449,000)	[5]							1,564,000		0
Credits processed		245,390,000								182,819,000		50,326,000
Ending balance		(86,797,000)		(26,544,000)		(37,793,000)		(26,544,000)		(37,793,000)		(26,544,000)
Successor [Member] | Cash discounts and other [Member] | JHP Group Holdings [Member]
Accounts Receivable Reserves [Roll Forward]
Ending balance						(1,792,000)				(1,792,000)
Predecessor [Member]
Accounts Receivable Reserves [Roll Forward]
Beginning balance												(143,164,000)		(143,164,000)		(143,164,000)
Provision recorded for current period sales																(584,034,000)
(Provision) reversal recorded for prior period sales																734,000
Credits processed																563,439,000
Ending balance																(163,025,000)
Accrued Liabilities [Roll Forward]
Beginning balance												(39,614,000)	[1]	(39,614,000)	[1]	(39,614,000)	[1]
Credits processed																(49,536,000)	[1]
Accrued Government Pricing Liabilities, (Provision) Reversal for Prior Period Sales																0	[1]
Accrued Government Pricing Liabilities, Credits Processed																46,695,000	[1]
Ending balance																(42,455,000)	[1]
Settlements and loss contingencies, net																45,000,000
Predecessor [Member] | Chargebacks [Member]
Accounts Receivable Reserves [Roll Forward]
Beginning balance												(20,688,000)		(20,688,000)		(20,688,000)
Provision recorded for current period sales																(309,411,000)
(Provision) reversal recorded for prior period sales																0	[4]
Credits processed																305,876,000
Ending balance																(24,223,000)
Predecessor [Member] | Rebates and incentive programs [Member]
Accounts Receivable Reserves [Roll Forward]
Beginning balance												(35,132,000)		(35,132,000)		(35,132,000)
Provision recorded for current period sales																(147,112,000)
(Provision) reversal recorded for prior period sales																(59,000)
Credits processed																138,437,000
Ending balance																(43,866,000)
Predecessor [Member] | Returns [Member]
Accounts Receivable Reserves [Roll Forward]
Beginning balance												(58,672,000)		(58,672,000)		(58,672,000)
Provision recorded for current period sales																(24,793,000)
(Provision) reversal recorded for prior period sales																1,602,000	[6]
Credits processed																17,744,000
Ending balance																(64,119,000)
Predecessor [Member] | Cash discounts and other [Member]
Accounts Receivable Reserves [Roll Forward]
Beginning balance												(28,672,000)		(28,672,000)		(28,672,000)
Provision recorded for current period sales																(102,718,000)
(Provision) reversal recorded for prior period sales																(809,000)
Credits processed																101,382,000
Ending balance																(30,817,000)
Re-procurement occurring September 2012 through October 2012 [Member]
Accrued Liabilities [Roll Forward]
Settlements and loss contingencies, net		1,000,000
Post Audit Claims occurring January 2009 through December 2012 [Member]
Accrued Liabilities [Roll Forward]
Settlements and loss contingencies, net		500,000
TriCare [Member]
Accrued Liabilities [Roll Forward]
Settlements and loss contingencies, net		$ 800,000

[1] Includes amounts due to indirect customers for which no underlying accounts receivable exists and is principally comprised of Medicaid rebates and rebates due under other U.S. Government pricing programs, such as TriCare and the Department of Veterans Affairs.

[2] e received further additional information related to Managed Medicaid utilization in California and performed a recalculation of average manufacturer’s price. As a result we reduced our 2014 Medicaid accruals by approximately $3.6 million related to the periods March 2010 through December 2013. This activity was partially offset by the expense of $0.8 million related to disputed TriCare claims for the period from January 2009 through December 2013. Our Medicaid and TriCare accruals represent our best estimate at this time.

[3] e received additional information related to Managed Medicaid utilization in California and performed a recalculation of average manufacturer’s price. As a result we reduced our 2013 Medicaid accruals by approximately $3.6 million related to the periods January 2010 through December 2012. Our Medicaid accrual represents our best estimate at this time.

[4] Unless specific in nature, the amount of provision or reversal of reserves related to prior periods for chargebacks is not determinable on a product or customer specific basis; however, based upon historical analysis and analysis of activity in subsequent periods, we believe that our chargeback estimates remain reasonable. During the year ended December 31, 2014, the Company settled a dispute with a customer resulting in a recovery payment of $3.6 million of which $2.6 million pertained to prior year transactions.

[5] During the year ended December 31, 2014, the Company recorded expense of approximately $1.0 million related to a re-procurement claim from one customer for the period September 2012 through October 2012. In addition, we settled post audit claims from customers for the period January 2009 through December 2012 that resulted in net expense of approximately $0.5 million.

[6] The amount principally represents the resolution of a customer dispute in the first quarter of 2012 regarding invalid deductions taken in prior years of approximately $1.6 million.