Subsequent Event (Details) € in Millions |
12 Months Ended | ||||
|---|---|---|---|---|---|
|
Apr. 03, 2018
USD ($)
|
Apr. 03, 2018
EUR (€)
|
Mar. 31, 2018
USD ($)
|
Mar. 31, 2017
USD ($)
|
Mar. 31, 2016
USD ($)
|
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| Subsequent Event [Line Items] | |||||
| Amounts drawn under credit facilities | $ 380,000,000 | $ 395,000,000 | $ 528,000,000 | ||
| 364-Day Term Loan Facility [Member] | |||||
| Subsequent Event [Line Items] | |||||
| Amounts drawn under credit facilities | $ 0 | ||||
| Subsequent Event [Member] | 364-Day Term Loan Facility [Member] | |||||
| Subsequent Event [Line Items] | |||||
| Amounts drawn under credit facilities | $ 492,400,000 | € 400.0 | |||
| Subsequent Event [Member] | Fermacell GmbH [Member] | |||||
| Subsequent Event [Line Items] | |||||
| Consideration transferred | € | € 473.0 | ||||
| Voting interest acquired (as percent) | 100.00% | 100.00% | |||
| X | ||||||||||
- Definition Percentage of voting equity interests acquired at the acquisition date in the business combination. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount of cash inflow from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event. No definition available.
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