Summary of Significant Accounting Policies Restricted Cash (Details) - USD ($) $ in Thousands	May 31, 2018	Feb. 28, 2018
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted Cash	$ 11,576	$ 6,115
Cash held in escrow [Member]
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted Cash	0	650
98.7FM LMA restricted cash [Member]
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted Cash	$ 1,120	$ 1,358