XML 77 R62.htm IDEA: XBRL DOCUMENT v3.3.1.900

Cash Dividends (Detail) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Dividends Payable [Line Items]
Cash dividends paid, per share	$ 0.40	$ 0.40	$ 0.20
Cash dividends paid	$ 58,775	$ 58,288	$ 29,112
Installment 1, FY 2013
Dividends Payable [Line Items]
Cash dividends paid, date			Mar. 29, 2013
Cash dividends paid, per share			$ 0.05
Cash dividends paid			$ 7,312
Installment 2, FY 2013
Dividends Payable [Line Items]
Cash dividends paid, date			Jun. 28, 2013
Cash dividends paid, per share			$ 0.05
Cash dividends paid			$ 7,361
Installment 3, FY 2013
Dividends Payable [Line Items]
Cash dividends paid, date			Sep. 30, 2013
Cash dividends paid, per share			$ 0.05
Cash dividends paid			$ 7,231
Installment 4, FY 2013
Dividends Payable [Line Items]
Cash dividends paid, date			Dec. 31, 2013
Cash dividends paid, per share			$ 0.05
Cash dividends paid			$ 7,208
Installment 1, FY 2014
Dividends Payable [Line Items]
Cash dividends paid, date		Mar. 27, 2014
Cash dividends paid, per share		$ 0.10
Cash dividends paid		$ 14,456
Installment 2, FY 2014
Dividends Payable [Line Items]
Cash dividends paid, date		Jun. 26, 2014
Cash dividends paid, per share		$ 0.10
Cash dividends paid		$ 14,562
Installment 3, FY 2014
Dividends Payable [Line Items]
Cash dividends paid, date		Sep. 24, 2014
Cash dividends paid, per share		$ 0.10
Cash dividends paid		$ 14,634
Installment 4, FY 2014
Dividends Payable [Line Items]
Cash dividends paid, date		Dec. 24, 2014
Cash dividends paid, per share		$ 0.10
Cash dividends paid		$ 14,636
Installment 1, FY 2015
Dividends Payable [Line Items]
Cash dividends paid, date	Mar. 25, 2015
Cash dividends paid, per share	$ 0.10
Cash dividends paid	$ 14,640
Installment 2, FY 2015
Dividends Payable [Line Items]
Cash dividends paid, date	Jun. 24, 2015
Cash dividends paid, per share	$ 0.10
Cash dividends paid	$ 14,712
Installment 3, FY 2015
Dividends Payable [Line Items]
Cash dividends paid, date	Sep. 24, 2015
Cash dividends paid, per share	$ 0.10
Cash dividends paid	$ 14,712
Installment 4, FY 2015
Dividends Payable [Line Items]
Cash dividends paid, date	Dec. 24, 2015
Cash dividends paid, per share	$ 0.10
Cash dividends paid	$ 14,711

X

- Definition

Aggregate dividends paid during the period for each share of common stock outstanding.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770

+ Details

Name:	us-gaap_CommonStockDividendsPerShareCashPaid
Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Date the declared dividend will be paid, in CCYY-MM-DD format.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4304-108586

+ Details

Name:	us-gaap_DividendPayableDateToBePaidDayMonthAndYear
Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount of paid and unpaid common stock dividends declared with the form of settlement in cash.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770

+ Details

Name:	us-gaap_DividendsCommonStockCash
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_DividendsPayableLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_DividendsAxis=pten_InstallmentOneFiscalYearTwoThousandThirteenMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DividendsAxis=pten_InstallmentTwoFiscalYearTwoThousandThirteenMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DividendsAxis=pten_InstallmentThreeFiscalYearTwoThousandThirteenMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DividendsAxis=pten_InstallmentFourFiscalYearTwoThousandThirteenMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DividendsAxis=pten_InstallmentOneFiscalYearTwoThousandFourteenMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DividendsAxis=pten_InstallmentTwoFiscalYearTwoThousandFourteenMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DividendsAxis=pten_InstallmentThreeFiscalYearTwoThousandFourteenMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DividendsAxis=pten_InstallmentFourFiscalYearTwoThousandFourteenMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DividendsAxis=pten_InstallmentOneFiscalYearTwoThousandFifteenMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DividendsAxis=pten_InstallmentTwoFiscalYearTwoThousandFifteenMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DividendsAxis=pten_InstallmentThreeFiscalYearTwoThousandFifteenMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DividendsAxis=pten_InstallmentFourFiscalYearTwoThousandFifteenMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: