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Equity Transactions - Additional Information (Detail) (USD $)
In Millions, except Per Share data, unless otherwise specified |
0 Months Ended | 1 Months Ended | 3 Months Ended | 6 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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May 30, 2013
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May 30, 2013
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Mar. 18, 2013
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Dec. 28, 2012
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Sep. 28, 2012
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Jun. 29, 2012
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Mar. 30, 2012
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Mar. 31, 2012
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Jun. 30, 2013
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Mar. 31, 2013
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Jun. 30, 2012
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Jun. 30, 2013
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Jun. 30, 2012
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| Equity [Abstract] | |||||||||||||
| Stock based compensation expenses | $ 0.4 | $ 0.4 | $ 1.2 | $ 0.7 | |||||||||
| Class A and Class B common stock, dividend declared per share | $ 0.05 | $ 0.05 | $ 0.05 | $ 0.035 | $ 0.05 | ||||||||
| Class A and Class B common stock, dividend paid | 3.4 | 1.2 | 1.2 | ||||||||||
| Class A and Class B common stock, dividend paid per share | $ 0.035 | $ 0.035 | $ 0.035 | $ 0.035 | $ 0.05 | $ 0.05 | |||||||
| Class A and Class B common stock, expected annual dividend payment | $ 4.9 | $ 4.9 | |||||||||||
| Class A and Class B common stock, dividend declared date | May 30, 2013 | May 30, 2013 | Mar. 18, 2013 | Mar. 07, 2012 | Mar. 18, 2013 | ||||||||
| Class A and Class B common stock, payment date | Jun. 28, 2013 | Jun. 28, 2013 | Apr. 01, 2013 | ||||||||||
| Class A and Class B common stock, record date | Jun. 14, 2013 | Jun. 14, 2013 | Mar. 25, 2013 | ||||||||||