Summary of Significant Accounting Policies (details) - Simply Business [Member] $ in Millions	Aug. 04, 2017 USD ($) shares
Business Acquisition
Approximate purchase price including the repayment of debt and other obligations	$ 464
Restricted common stock [Member]
Business Acquisition
Shares issued (in shares) | shares	95,953
Shares issued value	$ 12
Restricted common stock [Member] | Two years from the issuance date [Member]
Business Acquisition
Vesting percentage	50.00%
Vesting period (in years)	2 years
Restricted common stock [Member] | Three years from the issuance date [Member]
Business Acquisition
Vesting percentage	50.00%
Vesting period (in years)	3 years