Income Taxes Income Taxes (Provision for Income Taxes) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2011
Current:
Federal									$ 9,585	$ 4,984	$ 4,484
State									3,056	1,662	1,643
Provision for income taxes, current									12,641	6,646	6,127
Deferred:
Federal									2,454	947	2,911
State									1,821	335	1,011
Provision for income taxes, deferred									4,275	1,282	3,922
Provision for income taxes	$ 3,963	$ 3,372	$ 5,075	$ 4,506	$ 3,082	$ 1,734	$ 1,359	$ 1,753	$ 16,916	$ 7,928	$ 10,049