Supplemental Cash Flow Information (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2012
Supplemental Cash Flow Information [Abstract]
Cash received from interest	$ 3,223	$ 2,584	$ 6,464	$ 5,709
Cash paid for interest	2,027	2,053	3,666	4,053
Cash paid for income taxes	$ 14,029	$ 10,137	$ 14,527	$ 10,479