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Equity Method Investments and Related-Party Transactions (Tables) | 9 Months Ended
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Dec. 31, 2017
Text Block [Abstract] |
The Difference Between Carrying Value of Investment in Euro Infrastructure Co. and Proportionate Share of Net Assets of Euro Infrastructure Co. | The difference between the Company’s carrying value of its investment in Euro Infrastructure Co. and its proportionate share of the net assets of Euro Infrastructure Co. as of December 31, 2017 and March 31, 2017 is summarized as follows:
|  | As of December 31, 2017 |  |  | As of March 31, 2017 |
|  | (In thousands) |
Carrying value of investment in Euro Infrastructure Co. |  | $ | 160,975 |  |  | $ | 141,894 |
Less: proportionate share of net assets of Euro Infrastructure Co. |  |  | 144,560 |  |  |  | 127,393 |
Excess carrying value of investment over proportionate share of net assets |  | $ | 16,415 |  |  | $ | 14,501 |
The excess carrying value has been primarily assigned to: |  |  |  |  |  |  |  |
Goodwill |  | $ | 23,171 |  |  | $ | 20,791 |
Identifiable intangible assets |  |  | 13,059 |  |  |  | 12,379 |
Tangible assets |  |  | (21,504 | ) |  |  | (20,241 | )
Deferred income taxes |  |  | 1,689 |  |  |  | 1,572 |
|  | $ | 16,415 |  |  | $ | 14,501 |
Schedule of Related Party Transactions | The following tables set forth the material related-party transactions entered into between Euro Infrastructure Co. and its subsidiaries, on the one hand, and the Company and its subsidiaries, on the other hand, in the ordinary course of business for the time periods presented:
|  | Three Months Ended |  |  | Nine Months Ended |
|  | December 31, 2017 |  |  | December 31, 2016 |  |  | December 31, 2017 |  |  | December 31, 2016 |
|  | (In thousands) |
Revenue |  | $ | 1,945 |  |  | $ | * |  |  | $ | 7,574 |  |  | $ | * |
Expense |  |  | 1,725 |  |  |  | * |  |  |  | 5,313 |  |  |  | * |
Cash received |  |  | 2,191 |  |  |  | * |  |  |  | 6,540 |  |  |  | * |
Cash paid |  |  | 1,407 |  |  |  | * |  |  |  | 5,416 |  |  |  | * |
|  | As of December 31, 2017 |  |  | As of March 31, 2017 |
|  | (In thousands) |
Accounts receivable |  | $ | 1,857 |  |  | $ | * | *
Collections in excess of revenues and deferred revenues |  |  | 2,580 |  |  |  | * | *
* | Euro Infrastructure Co. and its subsidiaries were not related parties in the prior year period.
** | Amount was insignificant.

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- Definition Tabular disclosure of equity method investments including, but not limited to, name of each investee or group of investments, percentage ownership, difference between recorded amount of an investment and the value of the underlying equity in the net assets, and summarized financial information. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=66011266&loc=d3e33918-111571 + Details
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- Definition Tabular disclosure of related party transactions. Examples of related party transactions include, but are not limited to, transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners and (d) affiliates. + References No definition available. + Details
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- References No definition available. + Details
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