Related Parties - Fundamental Global Investors, LLC (Details) $ / shares in Units, $ / shares in Units, $ in Thousands, $ in Millions						3 Months Ended
	Jul. 30, 2018 USD ($) $ / shares shares	Jul. 30, 2018 CAD ($)	Mar. 15, 2018 USD ($) shares	Nov. 01, 2017 USD ($) shares	Oct. 25, 2017 USD ($) $ / shares shares	Mar. 31, 2019 USD ($)	Mar. 31, 2018 USD ($)	Jul. 30, 2018 $ / shares shares
Related Party Transaction [Line Items]
Proceeds from sales of equity investments						$ 0	$ 3,633
Management
Related Party Transaction [Line Items]
Stock issued (in shares) | shares				475,428	900,000
Share price (in dollars per share) | $ / shares					$ 7.85
Proceeds from sale of treasury stock				$ 3,700
Proceeds from sales of equity investments			$ 3,400
Common Stock | Management
Related Party Transaction [Line Items]
Effect on future cash flows					$ 7,100
Other shares (in shares) | shares			424,572
Common Stock | Management
Related Party Transaction [Line Items]
Effect on future cash flows	$ 500
Shares of investment (in shares) | shares	75,000							75,000
Sale of stock (in dollars per share) | $ / shares	$ 7.13
Corporate Segment
Related Party Transaction [Line Items]
Effect on future cash flows		$ 1.3
Shares of investment (in shares) | shares	1,813,889							1,813,889
Sale of stock (in dollars per share) | $ / shares								$ 0.72