Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2013

Commitments And Contingencies [Abstract]

Future Minimum Rental Commitments for All Long-Term Noncancelable Operating Leases

($ in thousands)	Operating Leases
Year ending December 31:
2014	$	61,880
2015		10,452
2016		8,804
2017		7,708
2018		7,393
Thereafter		49,091
Total minimum lease payments	$	145,328

Future Payments for Obligations under Noncancelable Long Distance Contracts and Service Agreements

($ in thousands)	Amount
Year ending December 31:
2014	$	28,653
2015		20,796
2016		9,694
2017		4,295
2018		1,204
Thereafter		6,000
Total	$	70,642

Outstanding Performance Letters of Credit

($ in thousands)	Amount
CNA Financial Corporation (CNA)	$	45,659
All other		1,186
Total	$	46,845