Stockholders' Equity Matters (Details) - USD ($) $ / shares in Units, $ in Thousands				1 Months Ended	9 Months Ended
	Nov. 17, 2014	Nov. 04, 2014	Sep. 15, 2014	Nov. 30, 2012	Sep. 30, 2014
Equity [Abstract]
Special distribution declared			$ 700,000		$ 700,000
Special distribution paid		$ 700,000		$ 700,000
Maximum amount the special distribution can be in cash			$ 140,000
Maximum amount the special distribution can be in cash as a percent of the total special distribution			20.00%
Cash portion of special distribution		$ 140,000
Number of trading days used for value of special dividend		3 days
Average closing price on the three trading days following October 24, 2014		$ 35.55
Common stock issued in special dividend (in shares)		15,750,000
Catch-Up Dividends per Common Share (in dollars per share)	$ 0.2550