Ordinary and Preference Shares (Tables)

6 Months Ended

Sep. 30, 2017

7% Cumulative Redeemable Preference Shares [Member]

Class Of Stock [Line Items]

Summary of Shares Issued and Outstanding

The Company’s issued and outstanding preference shares consist of the following:

	Shares Issued and Outstanding				Liquidation amount per share
	September 30, 2017		March 31, 2017		September 30, 2017		March 31, 2017
7% Cumulative Redeemable    Preference shares		666,665		666,665	$	26.71	$	25.92
Total		666,665		666,665

Ordinary Shares [Member]

Class Of Stock [Line Items]

Summary of Shares Issued and Outstanding

The Company’s issued and outstanding ordinary shares were as follows:

	Shares Issued and Outstanding
	September 30, 2017		March 31, 2017		Par value
Ordinary shares		37,694,531		29,567,698	$	—
Total		37,694,531		29,567,698	$	—