Nature of Operations and Summary of Significant Accounting Policies (Tables)

12 Months Ended

Mar. 31, 2016

Accounting Policies [Abstract]

Summary of Net Properties and Equipment

The following is a summary of net properties and equipment at March 31:

	2016				2015
	Number Of Vessels		Carrying Value		Number Of Vessels		Carrying Value
			(Inthousands)				(Inthousands)
Owned vessels in active service		180	$	2,510,418		242	$	3,310,476
Stacked vessels		73		794,126		21		38,489
Marine equipment and other assets under construction				185,380				315,552
Other property and equipment (A)				61,367				81,790
Totals		253	$	3,551,291		263	$	3,746,307

Current and Long-Term Liabilities Related to Accrued Property and Liability Losses

The following table discloses the total amount of current and long-term liabilities related to accrued property and liability losses not subject to reinsurance recoverability, but considered currently payable as of March 31:

(In thousands)	2016		2015
Accrued property and liability losses	$	12,799		14,203