Costs incurred to effect a business combination which have been expensed during the period. Such costs could include business integration costs, systems integration and conversion costs, and severance and other employee-related costs.

No definition available.

Name:	us-gaap_BusinessCombinationIntegrationRelatedCosts
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

The Transactions (Details) (USD $)	3 Months Ended					12 Months Ended
The Transactions (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
The Transactions [Abstract]
Number of territories acquired									14
Acquisition purchase price	$ 2,000,000,000					$ 2,000,000,000
Acquisition and integration costs	$ 9,700,000	$ 13,500,000	$ 4,500,000	$ 28,600,000	$ 35,100,000	$ 9,652,000	$ 81,737,000	$ 143,146,000