Fair Value - Recorded Amount of Assets and Liabilities Measured at Fair Value on Recurring Basis (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014
Fair Value, Assets and Liabilities Measured on Recurring Basis [Abstract]
Derivative assets - interest rate swaps	$ 993
Derivative liabilities - interest rate swaps	(3,122)
Level 1
Fair Value, Assets and Liabilities Measured on Recurring Basis [Abstract]
Derivative assets - interest rate swaps	0
Derivative liabilities - interest rate swaps	0
Level 2
Fair Value, Assets and Liabilities Measured on Recurring Basis [Abstract]
Derivative assets - interest rate swaps	993
Derivative liabilities - interest rate swaps	(3,122)
Level 3
Fair Value, Assets and Liabilities Measured on Recurring Basis [Abstract]
Derivative assets - interest rate swaps	0
Derivative liabilities - interest rate swaps	$ 0