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STOCK-BASED COMPENSATION: Restricted Stock Unit Activity Related to Disposition of AMS (Details) - Time Vesting Restricted Stock Units $ in Millions | 9 Months Ended
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Dec. 31, 2018 USD ($) shares
Share-based compensation |
Accelerated vesting (in shares) | shares | 1,187,344
Accelerated compensation cost | $ 54.0
Incremental compensation cost | 27.0
Accelerated original grant date fair value, compensation cost | $ 27.0
Conversion percentage | 200.00%

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- Definition Additional share-based compensation cost recognized as a result of an occurrence of an event that accelerates its recognition. + References No definition available. + Details
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- Definition An excess of the fair value of the modified award over the fair value of the award immediately before the modification. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(2)(iii) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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