Segment Information (Tables)

3 Months Ended

Jun. 30, 2015

Segment Reporting [Abstract]

Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area

The following table presents the summary segment information for the three months ended June 30, 2015 and 2014:       

	Three Months Ended June 30,
	2015			2014
Sales and other operating revenues:
North America	$	30,300		$	35,389
Other regions	235,982			213,755
Total revenue	$	266,282		$	249,144
Operating income:
North America	$	871		$	2,034
Other regions	(3,775		)	712
Total operating income (loss)	(2,904		)	2,746
Interest expense	27,773			26,922
Interest income	1,374			1,351
Loss before income taxes and other items	$	(29,303	)	$	(22,825	)

Schedule of Disclosure on Geographic Areas, Long-Lived Assets in Individual Foreign Countries by Country

Analysis of Segment Assets		June 30, 2015		June 30, 2014		March 31, 2015
Segment assets:
	North America	$	328,461	$	259,968	$	231,131
	Other regions	1,503,225		1,690,293		1,395,515
	Total assets	$	1,831,686	$	1,950,261	$	1,626,646