Debt - Credit Agreement (Additional Information) (Details) - Revolving Credit Facility [Member] - Credit Agreement [Member] - Syndicate Of Banks [Member]	1 Months Ended
	Jun. 30, 2015
LIBOR [Member]
Debt Instrument [Line Items]
Debt instrument basis spread on variable rate	1.00%
Undrawn Amounts Interest Rate [Member]
Debt Instrument [Line Items]
Debt instrument basis spread on variable rate	0.25%
Federal Funds Purchased [Member]
Debt Instrument [Line Items]
Debt instrument basis spread on variable rate	0.50%