Condensed Consolidated Statements Of Cash Flows (USD $) In Thousands	9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010
Cash flows from operating activities	$ 44,509	$ 52,595
Cash used in investing activites	(32,587)	(11,888)
Cash flows from financing activities:
Repayments on Term Loan		(2,026)
Net payments on Revolving Credit Facility borrowings		(400)
Payments on insurance debt		(2,609)
Debt issuance costs		(4,911)
Exercise of stock options	974	3,020
Tax benefit windfall from share-based compensation arrangements		337
Purchase of common stock	(16,097)
Cash used in financing activities	(15,123)	(6,589)
(Decrease) increase in cash and cash equivalents	(3,201)	34,118
Cash and cash equivalents, beginning of period	85,594	447
Cash and cash equivalents, end of period	82,393	34,565
TPCGLLC [Member]
Cash flows from operating activities	44,757	52,198
Cash used in investing activites	(32,587)	(11,888)
Cash flows from financing activities:
Repayments on Term Loan		(2,026)
Net payments on Revolving Credit Facility borrowings		(400)
Payments on insurance debt		(2,609)
Debt issuance costs		(4,911)
Tax benefit windfall from share-based compensation arrangements		337
Capital distributions to parent	(83,605)
Cash used in financing activities	(83,605)	(9,609)
(Decrease) increase in cash and cash equivalents	(71,435)	30,701
Cash and cash equivalents, beginning of period	83,858	367
Cash and cash equivalents, end of period	$ 12,423	$ 31,068