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Quarterly Results (Unaudited) (Details) (USD $)
In Thousands, except Share data, unless otherwise specified |
3 Months Ended | 12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
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Sep. 30, 2013
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Jun. 30, 2013
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Mar. 31, 2013
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Dec. 31, 2012
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Sep. 30, 2012
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Jun. 30, 2012
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Mar. 31, 2012
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Dec. 31, 2011
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Sep. 30, 2013
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Sep. 30, 2012
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Sep. 30, 2011
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| Unaudited quarterly consolidated statement of operations | |||||||||||
| Revenue from operations | $ 129,128 | $ 124,199 | $ 130,324 | $ 122,205 | $ 122,275 | $ 121,273 | $ 125,724 | $ 106,031 | $ 505,856 | $ 475,304 | $ 327,378 |
| Income before provision for income taxes from operations | 17,139 | 18,813 | 21,522 | 11,181 | 8,171 | 24,772 | 31,270 | 15,735 | 68,655 | 79,948 | 36,138 |
| Net income from operations | $ 10,409 | $ 11,288 | $ 12,698 | $ 6,709 | $ 5,545 | $ 14,863 | $ 18,762 | $ 9,126 | $ 41,104 | $ 48,296 | $ 8,512 |
| Basic earnings per common share (in dollars per share) | $ 0.33 | $ 0.36 | $ 0.40 | $ 0.21 | $ 0.18 | $ 0.48 | $ 0.61 | $ 0.30 | $ 1.30 | $ 1.57 | $ 0.31 |
| Diluted earnings per common share (in dollars per share) | $ 0.32 | $ 0.35 | $ 0.39 | $ 0.20 | $ 0.17 | $ 0.45 | $ 0.57 | $ 0.28 | $ 1.26 | $ 1.47 | $ 0.29 |
| Basic weighted average shares outstanding (in shares) | 31,772,379 | 31,651,061 | 31,561,412 | 31,482,853 | 31,045,293 | 31,140,261 | 30,840,322 | 30,393,309 | 31,616,926 | 30,854,796 | 27,736,865 |
| Diluted weighted average shares outstanding (in shares) | 32,702,807 | 32,540,187 | 32,331,686 | 33,054,264 | 32,788,205 | 33,183,165 | 32,778,428 | 32,382,518 | 32,657,236 | 32,783,079 | 29,081,933 |