Debtor's Financial Statements (Cash Flows) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Jun. 30, 2014	Jun. 30, 2013
Condensed Financial Statements, Captions [Line Items]
Net cash used in operating activities	$ (58,801)	$ (165,346)
Capital expenditures	(23,591)	(18,930)
Proceeds from asset sales	7,102	529
Net cash used in investing activities	(16,489)	(18,401)
Increase in short-term borrowings	26,995	1,043
Increase (decrease) in other debt	(299)	176,600
Financing fees and other	(1,672)	(25,628)
Net cash provided by financing activities	25,024	152,015
Effect of exchange rate changes on cash and cash equivalents	152	(802)
Net decrease in cash and cash equivalents	(50,114)	(32,534)
Cash and cash equivalents, beginning of period	103,711	104,289
Cash and cash equivalents, end of period	53,597
Parent Company
Condensed Financial Statements, Captions [Line Items]
Net cash used in operating activities	(18,935)	(143,029)
Capital expenditures	(6,871)	(6,372)
Proceeds from asset sales	12	0
Net cash used in investing activities	(6,859)	(6,372)
Increase in short-term borrowings	15,067	0
Increase (decrease) in other debt	(451)	173,329
Financing fees and other	(1,660)	(25,628)
Net cash provided by financing activities	12,956	147,701
Effect of exchange rate changes on cash and cash equivalents	0	(35)
Net decrease in cash and cash equivalents	(12,838)	(1,735)
Cash and cash equivalents, beginning of period	17,349	26,419
Cash and cash equivalents, end of period	$ 4,511	$ 24,684