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Leases (table) (detail) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013
Operating Leases, Future Minimum Payments Due [Abstract]
2014	$ 32,814
2015	30,306
2016	26,559
2017	22,603
2018	18,641
2019-2031	36,774
Total	$ 167,697

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Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year.

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