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Cover [Abstract] Exercisable weighted average remaining contractual life (in years) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term Document Type Document Type Subsidiaries Subsidiaries [Member] Effective interest rate (as a percent) Debt Instrument, Interest Rate, Effective Percentage Fair Value Measurement and Fair Value of Financial Instruments Fair Value Measurement and Measurement Inputs, Recurring and Nonrecurring [Text Block] Subsequent Event Subsequent Event [Member] Loss Contingencies [Line Items] Loss Contingencies [Line Items] Scenario [Domain] Scenario [Domain] Stock repurchase (in shares) Treasury Stock, Shares, Acquired Contingent consideration Business Combination, Contingent Consideration, Liability Percentage allocated to common shareholders (as a percent) Percentage Of Net Income Allocated To Common Shareholders Percentage allocated to common shareholders. 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