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Fair Value Measurements - Additional Information (Detail)
$ in Millions
3 Months Ended
Jun. 30, 2016
USD ($)
Fair Value, Option, Quantitative Disclosures [Line Items]  
Fixed payments to partner, year 2017-06
Fixed payments to partner, year 2024-06
Purchase of outstanding preferred shares, year 2024
Additional paid in capital excess of cash contributed $ 5.2
Cash contribution by partner in joint venture 3.0
Level 3 [Member]  
Fair Value, Option, Quantitative Disclosures [Line Items]  
Joint Venture liability (level 3) 8.2
Level 3 [Member] | Other Noncurrent Liabilities  
Fair Value, Option, Quantitative Disclosures [Line Items]  
Joint Venture liability (level 3) 7.2
Level 3 [Member] | Other current liabilities  
Fair Value, Option, Quantitative Disclosures [Line Items]  
Joint Venture liability (level 3) $ 1.0