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Income Taxes - Unrecognized Tax Benefits (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2012
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]      
Beginning balance $ 8,089 $ 8,025 $ 6,549
Increases resulting from current year's tax positions 3,120 2,044 1,302
Increases resulting from prior years' tax positions 132 490 501
Decrease resulting from settlements and releases due to the lapse of statutes of limitations (1,726) (2,470) (225)
Decreases resulting from prior years' tax positions 0 0 (102)
Ending balance $ 9,615 $ 8,089 $ 8,025