Share-Based Payments (Narrative) (Details) (USD $) In Millions, unless otherwise specified	0 Months Ended	6 Months Ended
	Jul. 23, 2013	Jun. 30, 2014
ecoATM [Member]
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Fair value of original and replacement awards	$ 32.1
Replacement awards attributable to pre-combination services	1.4
Expense recognized associated with the issuance of rights to receive cash		$ 6.8
Awards Granted To Employees And Executives [Member] | Restricted Stock [Member]
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Share-based payment award vesting period, years		4 years
Awards Granted To Non Employee Directors [Member] | Restricted Stock [Member]
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Share-based payment award vesting period, years		1 year
Performance-based Restricted Stock Awards Granted to Executives [Member]
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Percentage of restricted stock awards vests two years from the date of grant		65.00%
Percentage of the restricted stock award vests three years from the date of grant		35.00%
Performance-based Restricted Stock Awards Granted to Executives [Member] | Restricted Stock [Member]
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Share-based payment award vesting period, years		3 years