Segment Information (Schedule Of Summarized Financial Information For The Joint Venture Not Consolidated) (Details) (USD $)
In Thousands, unless otherwise specified |
3 Months Ended | 9 Months Ended | ||
---|---|---|---|---|
Dec. 31, 2011
|
Dec. 31, 2010
|
Dec. 31, 2011
|
Dec. 31, 2010
|
|
Segment Reporting Information [Line Items] | ||||
Revenues | $ 123,596 | $ 103,870 | $ 378,222 | $ 366,799 |
Gross Margin | 12,471 | 7,840 | 25,561 | 37,820 |
Joint Venture [Member]
|
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Segment Reporting Information [Line Items] | ||||
Revenues | 35,558 | 33,950 | 113,353 | 100,253 |
Gross Margin | 16,487 | 15,459 | 45,439 | 38,820 |
Earnings Before Income Taxes | $ 15,552 | $ 14,391 | $ 42,320 | $ 35,736 |