Long-term Debt and Financing Arrangements - Phantom (Details)	6 Months Ended
	Jun. 30, 2015
Eurocurrency Rate [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	1.00%
Minimum [Member]
Debt Instrument [Line Items]
Fee percentage on unused portion of credit facility	0.20%
Minimum [Member] | Base Rate [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	0.15%
Minimum [Member] | Eurocurrency Rate [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	0.75%
Maximum [Member]
Debt Instrument [Line Items]
Fee percentage on unused portion of credit facility	0.30%
Maximum [Member] | Base Rate [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	1.00%
Maximum [Member] | Eurocurrency Rate [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	1.75%