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CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands | 12 Months Ended
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Mar. 31, 2016 | Mar. 31, 2015 | Mar. 31, 2014
Statement Of Income And Comprehensive Income [Abstract] |  |  |
Net (loss) earnings | $ (160,376) | $ (65,349) | $ 140,255
Other comprehensive income (loss): |  |  |
Unrealized gains (losses) on available for sale securities, net of tax of ($239), $0 and $115, respectively | (443) | 143 | 213
Amortization of loss on derivative contract, net of tax of $77, $0 and $251, respectively | 143 | 717 | 466
Change in supplemental executive retirement plan pension liability, net of tax of $1,264, $0 and $409, respectively | 2,347 | (1,845) | 760
Change in pension plan minimum liability, net of tax of $1,093, $0 and $763, respectively | 2,029 | (5,739) | 1,417
Change in other benefit plan minimum liability, net of tax of $5,081, ($769) and $1,109, respectively | 9,436 | (1,429) | 2,060
Total comprehensive (loss) income | $ (146,864) | $ (73,502) | $ 145,171

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