Restructuring Costs (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Dec. 31, 2015	Mar. 31, 2015
Realignment liability activity
Balance at the beginning of the period	$ 18,759	$ 0
Expense	28,029	25,619
Payments	(10,832)	(3,694)
Noncash settlements	(6,213)	(3,166)
Balance at the end of the period	29,743	18,759
Termination Benefits
Realignment liability activity
Balance at the beginning of the period	8,332	0
Expense	3,798	9,595
Payments	(8,541)	(1,263)
Noncash settlements	0	0
Balance at the end of the period	3,589	8,332
Remaining Lease Rentals
Realignment liability activity
Balance at the beginning of the period	10,427	0
Expense	18,018	11,473
Payments	(2,291)	(1,046)
Noncash settlements	0	0
Balance at the end of the period	26,154	10,427
Asset Impairment
Realignment liability activity
Balance at the beginning of the period	0	0
Expense	6,213	3,166
Payments	0	0
Noncash settlements	(6,213)	(3,166)
Balance at the end of the period	0	0
Facility Closure and Other Costs
Realignment liability activity
Balance at the beginning of the period	0	0
Expense	0	1,385
Payments	0	(1,385)
Noncash settlements	0	0
Balance at the end of the period	$ 0	$ 0