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Revenue (Tables) | 12 Months Ended
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Jun. 30, 2020
Revenue [Abstract] |
Contract with Customer, Asset and Liability [Table Text Block] |
|  | June 30, 2020 |  | June 30, 2019 |  | Change
|  | (In thousands) |  |  |  |
Costs and estimated earnings in excess of billings on uncompleted contracts |  | $ | 59,548 |  |  | $ | 96,083 |  |  | $ | (36,535) |
Billings on uncompleted contracts in excess of costs and estimated earnings |  | (63,889) |  |  | (105,626) |  |  | 41,737 |
Net contract liabilities |  | $ | (4,341) |  |  | $ | (9,543) |  |  | $ | 5,202 |
Disaggregation of Revenue [Table Text Block] | Geographic Disaggregation:
|  | Twelve months ended |  |  |  |
|  | June 30, 2020 |  | June 30, 2019 |  | June 30, 2018
|  | (In thousands) |  |  |  |
United States |  | $ | 1,020,083 |  |  | $ | 1,367,844 |  |  | $ | 981,292 |
Canada |  | 70,133 |  |  | 41,410 |  |  | 104,208 |
Other international |  | 10,722 |  |  | 7,426 |  |  | 6,053 |
Total |  | $ | 1,100,938 |  |  | $ | 1,416,680 |  |  | $ | 1,091,553 |
Contract Type Disaggregation:
|  | Twelve months ended |  |  |  |
|  | June 30, 2020 |  | June 30, 2019 |  | June 30, 2018
|  | (In thousands) |  |  |  |
Fixed-price contracts |  | $ | 685,559 |  |  | $ | 748,007 |  |  | $ | 588,039 |
Time and materials and other cost reimbursable contracts |  | 415,379 |  |  | 668,673 |  |  | 503,514 |
Total |  | $ | 1,100,938 |  |  | $ | 1,416,680 |  |  | $ | 1,091,553 |

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- Definition Tabular disclosure of receivable, contract asset, and contract liability from contract with customer. Includes, but is not limited to, change in contract asset and contract liability. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130551-203045 + Details
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- Definition Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130545-203045 + Details
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